Great Quality and Value - Our high quality compatible 1222 replacement cartridge is designed to work perfectly with shower faucets. Essential Values delivers reliable performance at an exceptional price. Improves Water Flow - The Posi Temp cartridge provides unrestricted water flow and helps prevent leaks. Built with quality construction to keep your shower running smoothly and efficiently. Durable Materials - Made of brass and extra durable plastic, the Essential Values shower valve cartridge is designed to keep your fixture operating at peak performance. Compatible with the 1222 cartridge design. Easy to Install - You do not need to replace your entire faucet. Simply swap in a 1222 cartridge in a few easy steps. Follow the provided instructions or contact us for support. Perfect Fit - The Posi Temp 1222 cartridges measure 4 inches by 1 inch and are custom designed to fit your shower. Use scenarios - Scenario 1: A shower faucet with reduced water flow or a slow drip due to a worn cartridge. Replacing with a 1222 replacement restores full flow and stops leaks. - Scenario 2: Replacing an aging Posi Temp cartridge in a 1222-compatible shower system to restore accurate temperature control and reliable operation. - Scenario 3: Routine maintenance in a multi-bath home where a standard 1222 cartridge is used across many showers, providing consistent performance and easy upgrades without changing entire valves.