This Normally Open (N/O) differential switch monitors the vacuum created by the draft inducer motor to ensure proper combustion air flow before allowing ignition

The hub on the A65825 is located on the intake side

For contractors performing a horizontal coil installation

It is the primary replacement seal for a wide range of industry-standard controls

the K1-8 is rated for high-pressure refrigeration service

Watts 0887294 Kit Els PW 17895 This Normally Open (N/O) differentialThe Watts 0887294 (also identified as RK009 VT) is a high performance reduced pressure zone assembly repair kit designed specifically for 1 4" and 1 2" Series 009 backflow preventers. As a veteran technician knows, maintaining the integrity of the relief valve assembly is critical for preventing back siphonage and protecting potable water systems from contamination. This total relief valve kit provides a direct factory solution for internal component