F for the opening (trip) point and a 40

Direct OEM Compatibility: Serves as the factory-authorized replacement for Lennox 71G1701 and 71G18

this board provides dual circuits capable of managing up to three auxiliary heating stages

Industrial-Grade Contacts: Built for high-frequency switching cycles to prevent contact pitting and resistance build-up

The Illinois 0036859 Trap Seat is a critical restoration component for 6P124-SEAT thermostatic traps and series G

Watts 0590722 Air Vent F for the opening (trip)The Watts 0590722, also identified as the FV 4M1 1 2, is a high performance automatic air vent designed for reliable air elimination in closed hydronic heating systems. Engineered with a heavy duty brass body and cover, this valve facilitates the continuous purging of air from hot or cold water distribution lines, preventing air locks and system noise. Featuring a 1 2 inch male NPT connection, it is rated for a maximum pressure of 150 psi (10 bar) and