Delta RP50587 Single Handle Valve Cartridge na This is an O.E.M. Authorized part or this is an authorized aftermarket product Fits with various Delta models Oem part RP50587 Compatible with Delta faucets Faucet and Finish Lifetime Limited Warranty Compliant with California and Vermont low-lead legislation For use with single handle DIAMOND Seal Technology faucets Compatible with Delta faucets Faucet and Finish Lifetime Limited Warranty Compliant with California and Vermont low-lead legislation For use with single handle DIAMOND Seal Technology faucets