Faucet cartridge ID from a photo.
40+ brands. Any model. Snap a photo and our specialists identify the exact part.
Snap a photo. Get the part drop shipped to you. Free to use, only pay for the parts you buy.
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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.
Faucet cartridge repair guides
Step-by-step removal and replacement for the faucet brands that come up most on service calls.
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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Shop CID Supply → Need a part identified? Submit a cartridge instead →Faucet cartridge FAQ
Questions we get from the field.
Can you identify a cartridge if I only have the broken pieces?+
Yes. Send every piece in one frame on a flat surface. Body profile, length and the stem end still carry enough detail to name the part even when it snapped coming out. Broken cases are routine for us.
How do I count splines if the stem is worn smooth?+
Send the photo anyway and say the count is unreadable. When splines are gone we work from body geometry, overall length, port layout and the retainer style. A worn stem narrows the field, it does not end the identification.
Do two-handle faucets need two separate submissions?+
No, one ticket covers the pair. Photograph both and tell us which side each came from. Hot and cold are not interchangeable, so we confirm the side and the shutoff direction before quoting either one.
What if my faucet is an imported or discontinued brand?+
Send it. We work across current catalogs and older reference material, and unusual imports are a regular part of the queue. If we cannot name it we tell you directly rather than guessing at a part that will not fit.
Can I submit from a desktop instead of my phone?+
Yes. The web submission takes the same photos and reaches the same specialists. Most plumbers submit from a phone at the valve, but nothing about the process requires the app.
Does the replacement come from the original manufacturer?+
We quote aftermarket replacements from our trusted suppliers, matched to the part you sent. If you need something specific noted on your ticket, say so in the submission and the specialist handling it will follow up.
Pull the cartridge. We'll do the rest.
Free to use. Submit your first cartridge and we'll take it from there.
Submit a cartridge→Free to use. Built for plumbers.