Moen 0519 Hot & Cold Posi-Temp Shower Stem Cartridge. It is made of plastic and features a temperature and pressure control cartridge. This OEM (Original Equipment Manufacturer) No. 1222 cartridge is designed for use with Moen Posi-Temp shower faucets.
WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer, or birth defects or other reproductive harm. For more Information go to www.P65Warnings.ca.gov