Watts Water Technologies 881326 Rubber Parts Kit

The Watts 881326 Rubber Parts Kit (Kit No. 709 / 12 BFP-RK) is a field-serviceable backflow preventer repair kit for Watts Series 709 Double Check Valve Assemblies, designed to restore sealing and operational performance in potable water protection systems. Included are a disc assembly, seat O-ring, and cover O-ring to support preventive and corrective maintenance, enabling replacement of worn rubber components and restoration of check valve sealing surfaces. It is commonly used in commercial buildings, municipal water systems, industrial facilities, schools, hospitals, apartment complexes, irrigation networks, and fire protection installations—any installation using Watts Series 709 backflow preventers. Technical specifications include Manufacturer Part Number 881326, Brand Watts, Product Type Backflow Preventer Rubber Parts Repair Kit, Compatible Series Watts 709 Double Check Valve Assembly, Service Media Potable Water, Installation Field Serviceable, Maintenance Type Preventive and Corrective Repair, Application Environments Commercial, Industrial, Municipal, and Institutional; contents include the Disc Assembly, Seat O-Ring, and Cover O-Ring. Common Replacements include RK 709 RT, RK 709 CK4, RK709 S4.