Watts RK 757A 757ADCDA CK2 6 Part of the RK 757A 757ADCDA Series Woven Fabric Specifications Kit Type Repair Kit Specifications Kit Type Repair Kit Lead Free YES Product Group BACKFLOW KITS UPC 098268611786 This check cover repair kit is used to repair or replace the first or second check on a 1 2 inch lead free double check valve assembly and used to protect drinking water supplies from dangerous cross connections in accordance with national plumbing codes and water authority requirements Specifications Kit Type Second Check Kit Lead Free YES Product Group BACKFLOW KITS UPC 098268127850 Features Factory Replacement Kit