This primary limit switch features a 7" insertion length to accurately monitor internal heat exchanger temperatures

the SPST (Single Pole Single Throw) switch automatically resets

the Rheem-Ruud 42-24166-81 Pressure Switch is the definitive OEM replacement for maintaining the safety loop in two-stage gas furnaces

Use the included color comparison chart to differentiate between safe

Can this gauge be used on other boiler brands

Schneider Electric (Erie) VT3223G13A020 Valve Assembly Els PW 17895 This primary limit switch featuresProfessionals in the field know that reliability in hydronic systems starts with a robust valve body and a dependable actuator. The Schneider Electric Erie VT3223G13A020 is a high performance three way zone valve designed for mixing or diverting applications in hot and chilled water systems. Engineered with the Erie PopTop series' signature tool less mounting, this 1 2 inch NPT zone valve allows for rapid actuator replacement without draining the