Is your Moen single-handle shower or tub faucet acting up? Maybe dripping, not holding temperature, or losing pressure? Before you call a plumber (and spend a fortune), try swapping out the cartridge yourself. This is a set of two 1222 replacement cartridges designed specifically for Moen Posi-Temp single-handle faucet systems. It's the part that controls water flow and temperature. Made from durable brass and plastic, it's built to restore consistent water pressure and reliable temp control. Having two is smart—you can fix the issue now and have a spare on hand for next time. It's a direct-fit replacement, so installation is straightforward if you're a bit handy. This is a super cost-effective DIY fix compared to buying from a dealer or hiring a pro. Get your shower back to its peaceful, predictable self!