Faucet cartridge ID from a photo.
40+ brands. Any model. Snap a photo — our specialists identify the exact part.
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Our team dedicates a specialist to each ticket to confirm the exact match, quote it out, and ensure the product is shipped directly to you.
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Faucet cartridge basics
Know what you're holding.
Faucet cartridges look alike and measure differently. Here's what usually comes out of the valve body, and what a specialist needs to see to name the exact part. Working on a tub or shower valve instead? Those go through shower cartridge identification.
Ceramic disc
Two polished discs inside a plastic or brass body, no rubber seats. Usually a short quarter-turn from off to full open.
Single lever
One stem controls hot and cold together. Look at the base — mixing ports and their layout are part of the fingerprint.
Length and spline count settle most IDs.
Full length, ruler in frame
Lay a tape or ruler alongside the whole part. Two cartridges can look identical and differ by half an inch.
Stem and spline count
Shoot the stem straight on and count the splines — 16, 20, 26 and up all exist on similar-looking bodies.
Base and ports — for single lever
The port pattern, keys and tabs on the base separate families that share the same outer shell.
Hot or cold, and which way it shuts off
Two-handle faucets take a matched pair, and the sides are not interchangeable. Note the side you pulled and whether the stem closes clockwise or counter-clockwise — that's often the only difference between two variations of the same cartridge.
The spline count
Counting the splines on the stem narrows hundreds of options down to a handful, and it's how we confirm the match before we quote it.
Corroded, scaled or snapped in half is fine. Send it anyway — body profile, length and splines are usually enough. For the full breakdown of what a specialist reads on each type, see our identification process, or learn how to read a cartridge yourself with our step-by-step identifier tool.
How it works
Faucet cartridge identification in four steps.
Same step you'd take for a repair anyway.
Open CartridgeID on your phone, or send the photo from the web. A real human gets assigned to each job.
Real human verification, not an AI guess. If a cartridge cannot be confirmed with certainty, we tell you before you order.
Parts shipped directly to you. Choose standard shipping, expedited, or next day (depending on location)
Running a service truck or a whole crew? See what changes on a cartridge call for plumbers.
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