Zurn RK34-975XLR Wilkins 3/4-Inch -1-Inch Rubber Repair Kit for 975XL RP Max. pressure: 175 psi - NPT connections Includes Seal Ring, Relief Valve Seal Ring, Diaphragm, O-ring Cover, O-ring Relief Valve Stem Compliance Certified For Use in Potable Water Applications in CA and VT