Hoffman Steam Air Vent 401422 1A, 1/8" Adjustable Angle Steam Radiator Air Valve
Hoffman Steam Air Vent. 1/8" NPT angle connection Maximum pressure 10 PSI Maximum operating pressure 1-1/2 PSI 6 port settings from #1 (slow) to #6 (fast) Adjustable port for true proportional venting Steam Air Vent. HOFFMAN STEAM AIR VENT ADJUSTABLE. RADIATOR AIR VENT ADJUSTABLE PORT.