1/4 to 1/2 In Reduced Pressure Zone Total Repair Kit_This 1/4 through 1/2 IN 009 total repair kit provides all the parts necessary to replace the major internal components of the applicable reduced pressure zone assembly. This kit consists of a cover O-ring, first and second check assemblies, seat, seat O-ring, stem and diaphragm assembly, stem O-ring, and RV spring._No special tools required for servicing_Genuine and original Watts parts_All parts are made of high quality materials_Factory replacement kit_Specifications_ADA Compliant N_Brand Watts_Kit Contents Relief Valve Repair Kit, First Check Repair Kit, Second Check Repair Kit, Retainer (If Plastic)_Kit Type Total Repair Kit_Lead Free YES_Part Number 0887298_Product Group BACKFLOW KITS_Products Used On LF009, 009_Products Used On Size 1/4 to 1/2 IN_Series RK-009