Agreed it's a pain to verify, I wrote the part number on the back of the wall plate after replacing mine last week. But if it's a faucet from a major brand, it might be on their website. It seems like each one only has a few different sizes. Answer from Firehed on reddit.com
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Deltafaucet
deltafaucet.ca › shower-cartridges
Shower Cartridge Identifier
We cannot provide a description for this page right now
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MOEN
moen.com › moen-101 › cartridges › standard
Standard | Cartridges | MOEN 101 | MOEN
Beginning with our original, tried-and-true 1200 model, our standard cartridges have evolved over time to deal with ever-changing water conditions while providing more consistent, smooth operation over the entire life of the cartridge. They have also come to enable the design of more compact, sleeker faucet styles prevalent in today's market. Standard cartridges are designed for faucets, Roman tubs and tubs/showers.
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RBROHANT
rbrohant.com › home › understanding bathroom faucet cartridges: the heart of your faucet's functionality
Understanding Bathroom Faucet Cartridges: The Heart of Your Faucet's Functionality
It is a valve that controls the release of hot and cold water, mixing them to the desired temperature. When you turn the faucet handle, the cartridge opens or closes various pathways, allowing water to flow out of the faucet spout. There are primarily three types of faucet cartridges:
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Vevano
vevano.com › blogs › bathroom-resources › shower-valve-types
Shower Valve Types 101 — How to Choose the Right Shower Valve
December 4, 2021 - Delta is known for its multi-choice universal shower valve, which is compatible with a wide selection of Delta trims and cartridges. Most reputable valve manufacturers offer limited lifetime warranties. Your shower faucet and shower valve go hand-in-hand, and so it’s important to properly identify the type of faucet and the valve you own before replacing or repairing your shower system.
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Trueserviceplumbing
trueserviceplumbing.ca › home › what is a shower cartridge?
What Is A Shower Cartridge?
February 25, 2025 - Replacement shower cartridges can be purchased at most hardware stores, plumbing supply stores, or online retailers. Our plumbing services also offer high-quality replacement cartridges and professional installation. When buying a replacement, ensure you get the correct type and model for your shower system.
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Moen Solutions
solutions.moen.com › article library
Faucet Cartridges: Shower - Moen Solutions
December 6, 2022 - How to identify which cartridge your Moen one, two or three handle bathroom tub and/or shower uses by handle operation and color images of the various cartridges.
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Guillens
guillens.com › JER › pdf › OEM_Generic_Faucet_and_Shower_Valve_Cartridge_Easy_Quick_Search.pdf pdf
OEM and Generic Faucet & Shower Valve Cartridge Easy ...
Quick and easy way to identify ... so we broke them down into classification for easy filtering as 1/4 Turn Cartridges including ceramic cartridges or plastic cartridges used on two or more...
Find elsewhere
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RONA
rona.ca › home › products › plumbing › parts and accessories › cartridges
Cartridges - Parts and Accessories | RONA
Some faucets require separate cartridges for hot and cold water, one to go beneath each faucet handle. Many of these fit popular faucet brands, including both newer and older models that may still be present in some homes. Find parts compatible with Waltec, Moen, Uberhaus, and other well-known names. Shower cartridges not only balance hot and cold water but also regulate flow and pressure, keeping it smooth and consistent.
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Sigmafaucetparts
sigmafaucetparts.com › pages › faucet-cartridge-fundamentals
Faucet Cartridge Fundamentals – Sigma Faucet Parts
A cold cartridge opens or turns on the water by moving in the clockwise direction. Two types of quarter-turn ceramic disk cartridges are very common: 16 point cartridge and 20 point cartridge.
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Amazon
amazon.ca › Best-Sellers-Faucet-Cartridges › zgbs › hi › 9716597011
Amazon.ca Best Sellers: The most popular items in Faucet Cartridges
1222 Replacement Cartridge with Cartridge Puller Tool &Installation Accessories, Compatible with Moen 1222 Shower Valve Cartridge ... Ousun 25mm Cartridge, CUPC Certified Faucet Cartridge, Single Handle Faucet Valve for Kohler Kitchen Faucet GP1093674, Pfister 9740740 Avalon/Treviso 26/529 Series 25mm Cartridge Sub Assembly ... American Standard Type P - 23529-0070A & AMS-M952100 - Bundle Faucet Cartridge Replacement with Pressure Balancing Unit - Tub & Shower Plumbing Repair Kit - After Market
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Equiparts
equiparts.com › faucet-cartridge-and-stem-quick-guide
Faucet Cartridge and Stem Quick Guide – Equiparts
The handle type and installation of the stems or cartridge(s) changes if it will dispense hot or cold water (or both for single lever faucets). For traditional lever handle faucets, which way the thread rises in the stem determines how it should be installed. The thread on Left-Handed stems rise to the left. They are turned counterclockwise to turn on. The thread on Right-Handed stems rise to the right. They are turned clockwise to turn on. However, showers will have different applications for cartridges depending on if it’s a round or cross handle instead of a lever.
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Showerspares
support.showerspares.com › support › solutions › articles › 77000484439-what-is-a-shower-cartridge-
What is a shower cartridge? : National Shower Spares Knowledge Base
Depending on the fault you are facing, you may not need to replace every component of a cartridge that works in this way. ... Sirrus thermostat and piston assembly (SK1500-3) to allow the shower to control the flow and regulate the temperature. The SK971006's brass body essentially works as a flow valve, whereas the thermal wax element (aka wax capsule) and piston/shuttle assembly work to regulate the temperature. Commonly this type of configuration is seen in many Bristan/Sirrus and Grohe showers, among others.
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This Old House
thisoldhouse.com › this old house › bathrooms
Shower Cartridge Replacement Costs (2026)
December 15, 2025 - Brand: The shower cartridge’s manufacturer influences the cost. Cartridge type: There are three types (single handle, dual handle, and diverter cartridges).
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Americanfaucetcorp
americanfaucetcorp.com › resources › valves-and-cartridges-catalog.pdf pdf
1 A M E R I C A N FA U C E T A N D C O AT I N G S C O R P O R AT I O N
Ceramic Disk Cartridge · 18.30.011 · $69 · Hot 20 Point · 🇩🇪 · GERMANY · Flühs · 1/2" In-Line Shutoff Valve · 18.30.020 · $150 · 20 Point · 16 Point · 20 Point · 3/4” Shut-Off Valves for High Flow Shower and Tub Systems (12 gpm) 1/2" In-Line Shutoff Valve ·
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ARCORA FAUCETS
arcorafaucet.com › home › how do you know what shower cartridge you need
How Do You Know What Shower Cartridge You Need | ARCORA FAUCETS
August 1, 2024 - Thermostatic Cartridges: These cartridges are more advanced and allow precise control over water temperature. They are commonly found in showers with thermostatic mixing valves, ensuring consistent water temperature even if there are fluctuations in hot or cold water supply. Once you’ve identified your shower valve type...
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Angi
angi.com › solution center › plumbing
What Is a Shower Cartridge? | Angi
May 6, 2025 - Flow cartridges, known as on/off or control cartridges, only control the flow of water from a showerhead, not the temperature. You can find them in older dual-handle showers, where you manually adjust the temperature using separate hot and cold controls. You can also use this type of cartridge with a diverter system to regulate the flow between outlets.
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Bostingner
bostingner.com › blogs › what is the difference between a shower valve and a cartridge?
What Is the Difference Between a Shower Valve and a Cartridge? — Bostingner
March 11, 2025 - Common types are as follows: If your main problem is that the faucet drips or the handle does not operate smoothly, then replacing the ceramic cartridge can extend the service life; if you want a more stable water temperature, it is recommended to choose a thermostatic cartridge. If you are not sure about the type of current shower system, or how to choose a compatible shower valve or cartridge, you can take the following methods:
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Pfister Faucets
pfisterfaucets.com › parts-support › replacement-parts › category › cartridges
Category
Stuff happens–sometimes even when you buy a great faucet and install it correctly. If something seems to be wrong with your Pfister product, we’ve got answers to common issues to help you out · 1-800-PFAUCET (1-800-732-8238)