Shower Faucet Cartridge Ceramic Disc, 500,000-Cycle Tested
Shower faucet cartridges built to the same endurance standard as our finished shower valves — because the cartridge is what determines whether your faucet line generates warranty calls or doesn't.
Ceramic disc construction in 25mm, 35mm, and 40mm body diameters. Every production batch runs 500,000 open/close cycles before release. cUPC, CE, and WaterMark certified. OEM from 200 pieces.
Engineering Rationale
The Component That Determines Your Warranty Claim Rate
A shower faucet cartridge is the single component that decides whether your faucet line is a reliable revenue stream or a warranty liability. The valve body, the handle, the trim — those are visible and easy to evaluate. The cartridge is invisible once the faucet is installed, and it's the first thing that fails when the manufacturing isn't right.
We've been assembling and testing cartridges since 2008, and the failure patterns are consistent: ceramic disc cracking, O-ring extrusion, and stem wear. Every design decision we've made on our shower faucet cartridge line is a direct response to one of those three failure modes.
Ceramic disc assembly cross-section — alumina discs sintered at 1,600°C, EPDM O-rings sized to ±0.02mm groove tolerances.
Three Failure Modes — Three Engineering Responses
Ceramic Disc Cracking
Our shower faucet cartridges use alumina ceramic discs sintered at 1,600°C. That sintering temperature matters — lower-temperature sintering produces a disc with more porosity, which means lower hardness and faster wear when the disc faces slide against each other under load. At 1,600°C, the alumina reaches near-theoretical density, and the resulting hardness is what gives the disc its service life.
We've tested discs from several suppliers over the years, and the ones that fail early almost always trace back to sintering temperature shortcuts. We now require sintering temperature documentation from our ceramic disc supplier as part of incoming qualification — it's not a spec you can verify visually, but it's the spec that determines whether the cartridge lasts 5 years or 18 months.
O-Ring Extrusion
We use EPDM compound at 70 Shore A durometer, sized to each groove with a 15% compression ratio. That compression ratio is tighter than the minimum spec in most cartridge standards, and it's why our cartridges hold a seal at 0.6 MPa without weeping. O-ring extrusion — where the ring gets pushed out of its groove under pressure cycling — is almost always a groove geometry problem or an O-ring that's undersized for the groove.
We machine the groove dimensions to ±0.02mm and verify with go/no-go gauges on every production run.
Particulate Contamination Scoring
The third failure mode is particulate contamination scoring the disc faces. Our cartridge body includes a 100-mesh stainless inlet screen upstream of the disc assembly. We added this after seeing a batch of returns from a hard-water market in the Middle East — calcium deposits were scoring the disc surfaces within 18 months of installation.
The screen adds $0.08 to the unit cost and eliminates the failure mode entirely. For buyers distributing into hard-water regions (the US Southwest, the Gulf states, parts of Australia), this is the detail that separates a cartridge that generates repeat warranty calls from one that doesn't.
Hard-Water Market Note
For buyers distributing into hard-water regions — the US Southwest, the Gulf states, parts of Australia — the 100-mesh inlet screen is the detail that separates a cartridge that generates repeat warranty calls from one that doesn't. Calcium deposits scoring disc surfaces within 18 months is a documented failure pattern in these markets. Our standard cartridge includes the screen as a production default, not an optional add-on.
Send us your target body diameter and annual volume — pricing and sample availability within 24 hours.
Engineering Data
Technical Specifications
The parent category page covers our full cartridge specification range in detail — see the complete cartridge spec table at Faucet Aerators & Components. Here are the exact parameters for our shower faucet cartridge line.
Shower Faucet Cartridge — Production Specifications
| Parameter | Specification |
|---|---|
| Body diameter | 25mm / 35mm / 40mm |
| Ceramic disc material | Alumina ceramic, sintered at 1,600°C |
| Ceramic disc hardness | HRA 85+ (Rockwell A scale) |
| O-ring material | EPDM, 70 Shore A durometer |
| O-ring compression ratio | 15% (groove-specific sizing) |
| Inlet screen | 100-mesh stainless steel |
| Operating pressure range | 0.05–0.6 MPa |
| Temperature range | 0–90°C |
| Handle travel angle | 90° standard (custom angles available on OEM orders) |
| Stem material | Brass, CNC-machined |
| Body material | POM (polyoxymethylene) engineering plastic |
| Endurance test | 500,000 open/close cycles per production batch |
| Certifications |
cUPC CE WaterMark
|
Specifications shown are standard production values. Contact us for exact data sheets or to confirm fit with your specific valve body.
Diameter Selection Guide
Which body diameter fits your valve application
25mm — Compact single-lever
Fits slim-profile shower valves and most basin mixer cartridge housings. Common in European-spec fixtures and space-constrained wall-mount designs.
35mm — Standard shower cartridge
The most common body diameter for residential shower valves globally. Fits the majority of OEM valve bodies from major brands. Our highest-volume SKU.
40mm — High-flow commercial
Designed for commercial shower valves, high-flow rain-head systems, and thermostatic valve bodies requiring larger port area. Specify when flow rate is a primary constraint.
Not sure which diameter fits your valve body? Send us a cross-section drawing or the OEM part number — we'll confirm compatibility before sampling.
Groove Tolerance
Verified with go/no-go gauges on every production run. Not a design target — a production standard.
Cycle Endurance
Open/close cycles tested per production batch. Equivalent to roughly 30+ years of residential use at 40 cycles per day.
Ceramic Hardness
Alumina ceramic sintered at 1,600°C. Harder than most abrasive particles in municipal water supplies.
OEM & Private Label
Custom Cartridges for Your Valve Body
Most of our volume is OEM — buyers who need a cartridge built to their valve body dimensions, branded to their spec, and delivered on a schedule that matches their production line. Here's how that process works and what we need from you to get started.
Send us your valve body drawing or sample
A 2D cross-section with the cartridge bore diameter, depth, and port positions is enough to start. If you don't have a drawing, send a physical sample — we'll measure it and return it with a dimensional report.
We confirm fit or flag deviations
Within 48 hours we'll confirm whether your bore matches a standard SKU or requires a custom tooling run. If custom tooling is needed, we'll quote the tooling cost (typically $800–$2,000 depending on complexity) and the per-unit price at your target volume.
Sample approval
We produce 5–10 pre-production samples for your fit and function testing. Standard lead time is 15–20 days from drawing approval. We include a dimensional report and cycle-test data with every sample set.
Production and delivery
After sample sign-off, production lead time is 30–45 days for standard volumes. We support FOB Ningbo, CIF, and DDP Incoterms. Packaging can be plain poly-bag, retail blister, or custom-branded box — your call.
What We Can Customize
- Body diameter and depth — any bore from 20mm to 50mm with custom tooling
- Port positions and count — hot/cold/outlet geometry matched to your valve body
- Handle travel angle — 90°, 120°, or 180° rotation depending on your UX spec
- Stem spline profile — matched to your handle interface, including D-shaft and hex variants
- Flow rate limiting — internal restrictor disc for WaterSense or regional flow-rate compliance
- Branding and packaging — laser-marked part numbers, custom retail packaging, private-label documentation
Minimum Order Quantity
For standard SKUs. Custom tooling orders start at 1,000 pcs to amortize tooling cost.
Sample Lead Time
From drawing approval to pre-production samples at your door, including dimensional report.
Production Lead Time
After sample sign-off. Expedited production available for established accounts with confirmed forecasts.
Send a drawing or sample — we'll confirm fit and quote within 48 hours.
Quality Assurance
How We Control Quality at Scale
Quality control on ceramic disc cartridges is not a final inspection step — it's built into the production process at four distinct checkpoints. Here's what happens between raw material receipt and the cartridge leaving our facility.
Incoming Ceramic Inspection
Every ceramic disc batch is checked for surface flatness (≤0.001mm deviation), hardness (HRA 85+), and dimensional conformance before entering the assembly line. Non-conforming discs are quarantined and returned to the ceramic supplier.
O-Ring Groove Gauging
Every machined body is checked with go/no-go gauges for groove width and depth. The ±0.02mm tolerance is verified 100% — not sampled. Bodies outside tolerance are scrapped, not reworked, to prevent borderline parts from reaching assembly.
Hydrostatic Leak Test
Assembled cartridges are pressure-tested at 1.0 MPa (10 bar) — 1.67× the maximum rated operating pressure. Each unit is held at pressure for 60 seconds. Any pressure drop triggers automatic rejection. Test data is logged per batch.
Cycle Endurance Sampling
A statistical sample from each production batch is pulled for 500,000-cycle endurance testing. Cartridges are cycled on automated test rigs at 0.3 MPa. Post-test leak check and torque measurement confirm no degradation. Batch is held until endurance data clears.
Certifications & Standards
cUPC Certified
IAPMO-listed for the US and Canadian plumbing markets. Required for specification into commercial projects and many residential building codes.
CE Marked
Compliant with EU construction products regulation. Required for distribution into EU member states and EEA markets.
WaterMark Certified
SAI Global WaterMark listing for the Australian and New Zealand markets. Mandatory for plumbing products sold through licensed plumbers in Australia.
Buyer FAQ
Questions We Get From Buyers
These are the questions that come up in almost every first conversation with a new buyer. If yours isn't here, ask us directly.
Can you match a cartridge to my existing valve body without a drawing?
What's the actual warranty failure rate on your cartridges?
Do you hold stock for repeat orders, or is everything made to order?
How do I know if the 100-mesh inlet screen is necessary for my market?
What Incoterms do you support, and where do you ship from?
Can we get private-label packaging with our brand on the cartridge?
What's the minimum order quantity for a first trial order?
How long does the sampling and approval process typically take?
Get Started
Ready to Qualify a Cartridge for Your Line?
Send us your valve body dimensions or a physical sample. We'll confirm fit, provide a dimensional report, and quote samples — usually within one business day.
in 3–5 days
WaterMark
return rate
MOQ available
Why 500,000 Cycles Per Batch — Not Just Per Product Introduction
Most cartridge manufacturers run endurance testing on new product introductions and then rely on process controls to maintain consistency across production runs. We run 500,000 cycles on every production batch. The distinction matters commercially.
What Batch-Level Testing Catches
Ceramic disc quality can drift between batches if the sintering process isn't tightly controlled — kiln temperature variation, disc geometry tolerance stack-up, or a change in the ceramic powder supplier can all affect disc hardness and surface finish without being visible on incoming inspection.
The only way to catch a batch that's going to fail early in the field is to run it on the endurance rig before it ships.
Two Batches Caught in Four Years
We've caught two batches in the past four years that passed all dimensional and visual checks but showed accelerated wear at the 200,000-cycle mark — both were traced back to a sintering temperature deviation at the ceramic supplier.
Neither batch shipped.
What This Means for Your Business
The cartridge performance your sample showed is the cartridge performance your container delivers. The test report travels with every shipment — your QC team gets the data without having to request it separately, and your customs broker has the documentation they need for markets that require performance certification at import.
If you want to run your own incoming inspection, we can provide the test fixture dimensions and protocol so your lab can replicate the test.
Test report included with every shipment. Your QC team gets the data without having to request it separately, and your customs broker has the documentation they need for markets that require performance certification at import. We can also provide the test fixture dimensions and protocol so your lab can replicate the test independently.
Sizing Your Shower Faucet Cartridge Order: Which Diameter for Which Application
The body diameter is the primary selection parameter, and getting it wrong means a 100% return rate on the order. Here's how the three sizes map to common shower valve applications.
Body Diameter
25mm Cartridge
Fits compact single-handle shower valves, some concealed shower rough-in bodies, and certain European-market shower mixers where the valve body is designed for a smaller bore.
Applications
- Compact single-handle shower valves
- Concealed shower rough-in bodies
- European-market shower mixers (smaller bore)
Body Diameter
35mm Cartridge
The standard for most single-handle shower valves in North America and Europe. This is the size that covers the broadest range of OEM shower faucet programs and the highest volume of replacement parts demand.
Applications
- North American single-handle shower valves
- European single-handle shower valves
- OEM shower faucet programs (broadest range)
- Replacement parts catalogs (highest volume)
Single-size catalog? If you can only stock one size, 35mm is the one.
Body Diameter
40mm Cartridge
Specified for larger-bore valve bodies. The 40mm body diameter allows for a larger disc face area, which reduces the operating torque at the handle — why thermostatic valve manufacturers tend to prefer this size for premium product lines.
Applications
- Thermostatic shower valves
- Multi-outlet diverter valves
- High-flow shower systems
- Premium product lines (reduced handle torque)
Measure the Cartridge, Not the Valve Body
If you're sourcing cartridges as replacement parts for an existing product line, measure the existing cartridge body diameter with a caliper — don't rely on the valve body's nominal size, because some manufacturers use non-standard bore dimensions.
Pairing Our Cartridges with Faucets from Another Source?
Buyers sourcing cartridges for a private-label shower faucet program who haven't confirmed the valve body bore dimension with their faucet supplier regularly run into fit problems. Get the valve body drawing before you order.
We can cross-reference the bore dimension against our cartridge OD tolerances and confirm fit — it takes 10 minutes and saves a container-worth of problems.
Market Segments Where Shower Faucet Cartridge Demand Is Consistent
Four procurement contexts drive predictable, repeatable cartridge volume. Understanding which segment you operate in determines how you structure your order — SKU depth, certification requirements, and packaging format all differ by channel.
Highest Volume Segment
Replacement Parts Distribution
Shower valves installed in residential and commercial properties need cartridge replacement every 5–10 years under normal use — sooner in hard-water areas or high-frequency commercial environments. Plumbing distributors who stock replacement cartridges in the 35mm size capture service calls that would otherwise go to a competitor.
The reorder pattern is predictable: once a distributor establishes a cartridge SKU in their catalog, the replacement demand is self-sustaining. We supply several distributors in North America and Australia who run 5,000–20,000 cartridge units per year purely on replacement demand, with minimal marketing effort beyond catalog placement.
Typical Annual Volume
5,000–20,000 units
Replacement Cycle
5–10 years
Component Sourcing
OEM Shower Faucet Programs
If you're manufacturing or private-labeling shower faucets, the cartridge is the component that determines your warranty exposure for the life of the product line. Sourcing the cartridge from the same factory that makes your faucets — or from a factory that can qualify the cartridge against your specific valve body — eliminates the tolerance mismatch risk that comes from sourcing components separately.
We've done cartridge qualification testing for several buyers who were transitioning their shower faucet line to us from another factory: they send us the valve body drawing, we run a fit-and-function test, and we confirm compatibility before the first production order.
Qualification Process
Project Procurement
Hospitality & Commercial Construction
Procurement teams source shower faucet cartridges in volume for new-build and renovation projects. A 200-room hotel renovation typically requires 200–400 cartridges depending on the valve configuration, and project procurement teams often want to hold a service stock of 10–20% of the installed quantity for maintenance.
The cUPC certification covers North American plumbing code compliance for commercial installations; CE covers European projects. If you're supplying into this segment, having the certification documentation pre-packaged with the shipment reduces the approval cycle on the project side.
200-Room Hotel
200–400 cartridges
Recommended Service Stock
10–20% of install qty
Growing Segment
Overseas Manufacturers
Manufacturers sourcing components to complete their own shower faucet assemblies represent a growing segment, particularly in Southeast Asia and the Middle East. A manufacturer who produces the valve body and trim locally but sources the ceramic cartridge from a specialist supplier gets the benefit of local assembly economics combined with a cartridge that meets export market certification requirements.
We supply several manufacturers in this configuration — they send us their valve body drawings, we confirm cartridge fit, and they incorporate our cartridges into their finished product for export.
Key Markets
Ready to discuss your application?
Tell us your target market, annual volume, and whether you need OEM packaging or standard bulk supply.
OEM Shower Faucet Cartridges: What Can Be Customized
The ceramic disc geometry and the body diameter are fixed — the disc tooling is expensive and the standard 25mm/35mm/40mm sizes cover 95% of market applications. Everything else is configurable on OEM orders.
Handle Travel Angle
Standard is 90° rotation from full cold to full hot. We can produce 120° or 180° travel angles for valve bodies that require a longer handle sweep — typically specified for accessibility applications or for premium shower valves where the buyer wants a more deliberate temperature adjustment feel.
Travel angle changes require a modified stem, produced from existing CNC tooling — no new die investment required.
Stem Length & Profile
If your valve body has a non-standard stem pocket depth or a proprietary stem interface, we can machine a custom stem profile. Send us the valve body drawing and we'll quote the modification.
Most stem customizations are achievable within our existing CNC capabilities without new tooling.
Packaging
Standard supply is bulk poly bag, 10 units per inner box, 100 units per master carton. OEM options include:
- Branded retail packaging (blister card or folding box with your logo and UPC)
- Individual foam-sleeved packaging for premium product positioning
- Custom labeling with your part number and installation instructions
- Pre-applied QR code linking to your installation video — reduces after-sales support load
Certification Documentation
If your market requires specific certification documentation beyond our standard cUPC/CE/WaterMark package, we can prepare additional test reports through our SGS relationship.
Most Gulf and ASEAN markets accept SGS documentation for import clearance.
OEM Order Parameters
Minimum Order Quantity
200 pieces per SKU
Standard OEM Lead Time
20–25 days
Existing body diameter, custom packaging or stem modification
New Stem Profile Lead Time
+5–7 days
CNC program development for new stem profiles
Fixed Parameters (Not Configurable)
Regulatory Documentation
Compliance Coverage by Destination Market
The category page covers the full compliance picture for our component range — see the market compliance section at Faucet Aerators & Components. For shower faucet cartridges specifically, here is what each destination market requires and what we provide.
North America
cUPC certification covers our cartridges for Canadian plumbing code compliance (CSA B125.1). For US commercial installations, cUPC is the standard documentation that project engineers and inspectors recognize.
Our brass stems use C36000-equivalent alloy with lead content below 0.25%, compliant with California AB 1953 and the federal Reduction of Lead in Drinking Water Act — the wetted surface lead requirement applies to cartridge stems as well as faucet bodies.
Europe
CE marking covers our cartridges for EU market entry. The relevant standard for ceramic disc cartridges is EN 817 (mechanical mixing valves).
Our cartridges are manufactured to EN 817 performance requirements, and the CE documentation is included with every shipment to European buyers.
Australia
WaterMark certification is required for plumbing products sold in Australia, including replacement cartridges.
Our WaterMark documentation is included with every shipment to Australian buyers — you don't need to apply for separate certification for the cartridge if you're sourcing from us.
Middle East & Southeast Asia
SGS test reports are available for all cartridge sizes. Most Gulf and ASEAN markets accept SGS documentation for import clearance without requiring additional local certification.
Certification Reference at a Glance
| Market | Certification / Standard | Lead Compliance | Documentation Delivery |
|---|---|---|---|
| USA & Canada | cUPC / CSA B125.1 | AB 1953 / Federal RLDWA (<0.25% wetted surface) | Included with shipment |
| European Union | CE / EN 817 | EU RoHS compliant | Included with shipment |
| Australia | WaterMark | AS/NZS compliant | Included with shipment |
| Gulf & ASEAN | SGS Test Reports | Per SGS report scope | Available for all sizes |
Logistics & Landed Cost
Packaging, Container Loading, and Landed Cost
How cartridges are packed affects whether they arrive intact. How your container is loaded affects your landed cost per unit. Both are worth understanding before you place a first order.
Packaging Configuration
Individual Unit
Each cartridge is wrapped in a foam sleeve before boxing. The foam sleeve prevents ceramic disc edge chipping during transit — an early shipment without foam sleeves arrived with chipped disc edges from cartridges rattling in the carton. The foam sleeve adds $0.03 per unit and eliminates the problem.
Inner Box
10 units per inner box
Master Carton
100 units per master carton
Master Carton Dimensions
35 × 25 × 20 cm — gross weight approximately 6 kg
Container Loading & Capacity
40HQ Capacity
Approximately 2,200 master cartons — 220,000 units per 40HQ container.
Mixed Orders
For buyers running mixed orders — cartridges plus aerators or supply hoses — we coordinate the packing sequence and provide a single combined packing list. Your freight forwarder gets one document, not two.
Production Coordination
For buyers consolidating cartridge orders with shower faucet orders from our tub and shower faucet line, we can coordinate production schedules so both arrive in the same container — one freight booking, one customs clearance, one receiving event at your warehouse.
Replenishment Program Advantage
Landed Cost Savings That Compound
Consolidating cartridge orders with shower faucet orders across a 12-month replenishment program delivers a landed cost saving that compounds: one freight booking, one customs clearance, one receiving event at your warehouse. The per-unit freight cost on a consolidated container is materially lower than two separate shipments — and the administrative overhead is half.
Container Capacity
220,000
units per 40HQ
Packing Documents
1
combined packing list for mixed orders
Foam Sleeve Cost
$0.03
per unit — eliminates disc chipping
Faucet Aerators & Components Range
Sibling Components in the Faucet Aerators & Components Range
Shower faucet cartridges are one of nine product lines in our components catalog. If you're building a broader replacement parts program or a complete OEM component supply, the following lines ship from the same facility with the same documentation package — so a mixed-component order doesn't require managing multiple supplier relationships or multiple customs entries.
Kitchen Faucet Hoses
Kitchen Faucet Hoses
Braided stainless supply hoses and pull-down spray hoses, burst-tested to 500 PSI. Standard 24" and 36" lengths; custom lengths on OEM orders.
View productFaucet Aerators
Faucet Aerators
M16 through M24 thread sizes, 0.5–2.2 GPM flow rates, brass and zinc alloy housings. The core SKU for any replacement parts catalog.
View productLow Flow Faucet Aerators
Low Flow Faucet Aerators
0.5 and 1.0 GPM flow-restricted aerators for WaterSense and California CEC compliance programs.
View productFilter Faucet Aerators
Filter Faucet Aerators
Aerators with replaceable sediment pre-filter inserts for hard-water and inconsistent-supply markets.
View productAll components ship from the same facility with the same documentation package, so a mixed-component order doesn't require managing multiple supplier relationships or multiple customs entries.
Buyer Guidance
Frequently Asked Questions
Practical answers to the specification, compatibility, and procurement questions we hear most often from wholesale buyers and OEM sourcing teams.
What body diameter shower faucet cartridge do I need, and how do I measure it?
What body diameter shower faucet cartridge do I need, and how do I measure it?
Measure the outside diameter of the existing cartridge body with a caliper — not the valve body bore, because some manufacturers machine the bore slightly oversized. Our three standard sizes are 25mm, 35mm, and 40mm OD. The 35mm covers the majority of single-handle shower valves in North American and European markets.
If you're sourcing for a new OEM program and don't have an existing cartridge to measure, send us the valve body drawing and we'll confirm the correct size from the bore dimension and stem pocket depth.
Can your shower faucet cartridges replace cartridges from other manufacturers?
Can your shower faucet cartridges replace cartridges from other manufacturers?
Often yes, with a qualification step. Send us a sample of the existing cartridge or the valve body drawing, and we'll check whether our standard 25mm, 35mm, or 40mm cartridge is a direct fit.
If the body geometry is close but not exact — stem length is off by a few millimeters, or the O-ring groove position differs slightly — we can usually modify the stem or O-ring sizing to achieve compatibility. We've done this for several buyers transitioning their shower faucet supply chain. It's a practical way to consolidate suppliers without forcing an immediate product redesign.
What is the difference between a 35mm and 40mm shower cartridge, and when should I specify the larger size?
What is the difference between a 35mm and 40mm shower cartridge, and when should I specify the larger size?
The 40mm cartridge has a larger ceramic disc face area, which reduces the operating torque at the handle — the larger disc distributes the sealing load over more surface area, so the handle turns more easily under the same water pressure. This is why thermostatic shower valve manufacturers and premium single-handle valve programs tend to specify 40mm.
For standard residential shower valves where handle feel is not a primary spec, 35mm is sufficient and more cost-effective. If you're building a product line positioned at the premium end of your market, the 40mm is worth the incremental cost.
How do I prevent shower faucet cartridge failure in hard-water markets?
How do I prevent shower faucet cartridge failure in hard-water markets?
The primary failure mode in hard-water areas is calcium and mineral scale scoring the ceramic disc faces. Our cartridges include a 100-mesh stainless inlet screen that catches particulate before it reaches the disc assembly — this is the most effective single design feature for hard-water durability.
Beyond the cartridge itself, advise your downstream customers to flush the valve body before cartridge installation to clear any construction debris from the supply lines. Debris scoring on the first day of use is the other common failure mode we see in new construction projects, and it's entirely preventable with a 30-second flush before the cartridge goes in.
What is your MOQ and lead time for shower faucet cartridges?
What is your MOQ and lead time for shower faucet cartridges?
Standard Catalog
200 pcs MOQ
Per SKU, bulk packaging
Lead time: 15–20 days from order confirmation
OEM / Custom
200 pcs MOQ
Custom packaging, branded boxes, stem modifications
Lead time: 20–25 days from order confirmation
Samples ship within 7 days of order confirmation and include the endurance test report for the batch.
Do your shower faucet cartridges come with test reports, and what do they cover?
Do your shower faucet cartridges come with test reports, and what do they cover?
Every production batch ships with a test report documenting:
- 500,000-cycle endurance test result
- Operating pressure test at 0.6 MPa
- Temperature cycling performance
- Batch number, test date, and pass/fail criteria
Certification documentation is included by destination: cUPC for North America, CE for Europe, WaterMark for Australia.
If your customs broker or project engineer needs additional documentation — material safety data, lead content test results, or specific certification copies — we prepare those in parallel with production.
Source Shower Faucet Cartridges Direct from the Manufacturer
We've been manufacturing and testing shower faucet cartridges since 2008 — not as a side product, but as an integrated part of a shower valve manufacturing operation. The same ceramic disc specifications, the same O-ring tolerances, and the same 500,000-cycle endurance standard that run our finished shower faucet lines run our cartridge supply program.
When you source from us, you're buying from the team that understands how the cartridge performs inside the valve body, not from a component trader who's never seen the assembly.
If you're evaluating us as a shower faucet cartridge supplier, the fastest path is a sample order. We ship samples within 7 days, with the endurance test report included. Most buyers run the samples through their own incoming inspection and confirm fit with their valve body before committing to a production order — that's the right process, and we support it.
Sample Process
Submit your cartridge inquiry with valve body specs and target diameter
Samples ship within 7 days, endurance test report included
Run incoming inspection and confirm fit before committing to production order
Learn more about our manufacturing capabilities and QC infrastructure on the About Wfaucet page.
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