Not sure which faucet cartridge you need, or how to get the old one out without cracking the valve? Answer a few quick questions and we’ll point you to the likely cartridge and the correct removal tool — and we’ll be honest about when to confirm the model before buying, and when to stop and call a pro.
Faucet, Shower & Toilet Repair Finder
Answer a few questions about your faucet, shower valve, or toilet to find the LIKELY part and the correct fix. We will tell you when to confirm before buying -- and when to stop and call a pro.
How this finder works
It is a symptom-first decision tree built from manufacturer cartridge specifications and real repair experience. You answer a few plain-English questions about your fixture, and it narrows to the likely part and the correct removal tool. It is deliberately conservative: at every step where forcing a stuck part could crack the valve body and turn a roughly $25 fix into a $1,500+ in-wall repair, it tells you to stop — and when the honest answer is to call a pro, it says so. It points you to the likely part, not a guarantee, so it always reminds you to confirm the exact model stamped on the old cartridge before you buy.
It currently covers sink and kitchen faucets, shower and tub valves, and toilets, across Delta, Moen, Kohler, American Standard, and Price Pfister. No sign-up, no email wall, and no ads.
Jump straight to your fixture
Already know what you are fixing? These deep links drop you directly into the right flow — handy to share in a forum reply or a text to a neighbor:
Link to or embed this tool
This finder is free to use and free to link. If it saved you a trip to the hardware store, help a neighbor find their part: link to plumbingbythebook.com/faucet-cartridge-finder, or deep-link a specific fixture with #faucet, #shower, or #toilet. Bloggers, forum moderators, and property managers are welcome to reference it in a resource list or how-to — no permission needed.