if your existing board matches these numbers

Is this relay safe for use in plenum spaces

allowing for easier installation in narrow heater cabinets

This specific OEM part is typically supplied as the switch unit

Integration is streamlined via standard screw terminals and a snap-track mounting base

Watts 0887120 Kit Els PW 17895 if your existing board matchesThe Watts 0887120 is a professional grade RK 909 CK1 first check repair kit engineered for 3 4" and 1" Reduced Pressure Zone (RPZ) backflow preventers. This factory replacement kit is designed specifically for the Watts Series 909 and Lead Free LF909 assemblies, providing a direct solution for maintaining the integrity of the first check station. As a direct replacement for legacy part numbers 881466 and RK909 CK1, this backflow preventer repair kit