SharkBite water hammer arrestors help to eliminate the banging noise in pipes by absorbing the pressure from sudden stops. Helps prevent damage to fixtures, pipes and fittings caused by the shock of the water. Designed to be used at the toilet, easily installed with 7/8-in threaded connections. 7/8-in male ballcock x 7/8 ballcock swivel For use with toilet supply line Stops banging noises in pipes Prevents damage to pipes and fixtures Series Name: N/A Type: Water hammer arrestor Inlet Diameter: 7/8-in Inlet Size in Inches: 7/8-in Outlet Diameter: 7/8-in Inlet Thread Type: Ballcock Material: Stainless steel Maximum Pressure: 125 PSI Outlet Thread Type: Ballcock Warranty: 2-year limited Compatible Pipe Material: Multi-Purpose CA Residents: Prop 65 Warning(s): Yes Complies with Federal Lead Guidelines: Yes UNSPSC: 40141600