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Whether you are performing routine maintenance on a T167 unit or retrofitting older PECO controllers
Maintenance Safety: Removable pull-out head provides a visible and secure break in power for technician safety
70" WC for accurate draft induction monitoring
it prevents internal heat exchanger temperatures from exceeding safe operational limits
Watts 0590719 Air Vent Whether you are performing routineThe 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