1. Compatible with Faucet Valve Body R11000 The RP51919 cartridge is specifically designed to be compatible with the faucet valve body R11000 R. Please check the comparison photo of your shower faucet and valve before ordering to ensure compatibility. Remember to verify the part number, model, and manufacturing years before placing your . 2. BRASS CONSTRUCTION The RP51919 6 setting diverter is made of brass, ensuring heat resistance and durability. Its sturdy construction resists deformation and delivers long lasting performance. 3. SAFE WATER TEMPERATURE CONTROL Featuring a single function pressure balancing design, the RP51919 replacement part allows you to control water temperature within a safe range of 14.4°C (2°F). It protects against sudden changes in hot and cold water pressure, ensuring a comfortable shower experience without surprises. 4. EASY REPLACEMENT To the old cartridge with the RP51919, turn off the water supply and insert the diverter valve. This simple process lets you fix a leaking faucet without replacing the entire unit. Remember to clean the area of any debris before installing the cartridge.