This industrial-grade air pressure switch is built to withstand the rigorous cycling of modern 2-stage heating systems

ensuring a drop-in fit for 12FS5C2448ACHR and 4D25 series valves

ensuring high current handling in compact control panel relays

Common Questions Will this kit work for both the 3/4" and 1" valve sizes

and fan functions

Watts 0887298 Repair Kit 30067439-890 This industrial-grade air pressure switchThe Watts 0887298 Total Repair Kit (Model RK 009 T) provides all necessary internal components to restore the functionality of a 1 2 inch Series 009 Reduced Pressure Zone (RPZ) backflow preventer. This comprehensive kit is engineered for field technicians performing required annual maintenance or repairing catastrophic seal failures. It includes the first and second check valve assemblies, the relief valve assembly, and all essential o rings and seat