Compatible with Faucet Valve Body R11000 The RP51919 cartridge is designed to be compatible with the Faucet valve body R11000. Please verify compatibility before ordering by comparing your shower faucet and valve. Be sure to check the part number, model, and years before placing your . Brass construction The RP51919 is a 6setting brass diverter. Brass provides durable heat resistance and solid structural integrity, helping to resist deformation and deliver longlasting performance. Safe water temperature control The cartridge features a singlefunction pressurebalancing design that maintains water temperature within 6 F (2 C). It protects against sudden changes in hot and cold water pressure for a stable and comfortable shower. Easy replacement To the old cartridge with the RP51919, turn off the water supply and insert the diverter valve. This replacement process lets you fix a leaky faucet without replacing the entire fixture. Clean the area of any contaminants before installing the cartridge. Use scenarios Residential bathroom with an R11000 valve body needing reliable diverter performance Rental properties or hotels where consistent water temperature reduces guest complaints usage homes or spalike showers that require durable, longlasting operation