Handle Assembly and 1224 Cartridge: Two or Three Handle Shower- Cap Knob
Moen produces a variety of two and three handle shower faucets. The interior components and assembly are not the same for each model. This article will explain how to service one of the more common handle assemblies and the 1224 interior flow cartridges.
- The water supply shut off valves must be turned off- see article How to Turn Off the Water Supply to the Faucet