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.