Watts 0590719 Air Vent while the two opposing ends

while the two opposing ends are 1/2-inch SAE Male Flare

this high-limit switch ensures the burner circuit is interrupted if plenum temperatures exceed safe operational thresholds

allowing it to function effectively in high-humidity environments found in commercial rooftop units and split systems

For high-performance furnace safety and temperature regulation

If your unit requires a manual reset

Watts 0590719 Air Vent while the two opposing endsThe Watts 0590719 is a high performance 1 8 inch NPT air vent designed for veteran contractors who require reliable air elimination in pressurized hydronic heating systems. Engineered as a direct replacement for the DUOVENT 1 8, this unit features a rugged brass body and cover capable of handling system pressures up to 150 PSI and temperatures reaching 240F. Its unique dual function design incorporates an automatic vent with a black cap for continuous