Question: are moen 1222 and 1225 interchangeable?
Answer: While the Moen 1200 and the Moen 1225 cartridges are interchangeable, the Moen 1222 Posi Temp cartridge is absolutely not interchangeable with the Moen 1225 or 1200. In fact, there isn't any part that is interchangeable between the Moen 1222 vs 1225 replacement parts.