Identifying the correct Moen faucet cartridge requires evaluating the physical shape of the stem, the number of handle movements, and whether the fixture is a single-handle or two-handle model. You can remove the handle to inspect the exposed cartridge and match its silhouette against Moen's online identification catalog—distinguishing between popular models like the 1225, 1222 Posi-Temp, or 1234. Alternatively, locating your original faucet model number or taking a clear photograph of the cartridge to a plumbing supply store ensures you purchase the exact matching replacement part.
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