Nickel Plated Brass countersink plug vents will fit flush in any application: gearboxes, storage tanks, single-action cylinders. The Male NPT thread sizes are 1/8"-27, 1/4"-18, 3/8"-18, and 1/2"-14. A 40-micron sintered Bronze filter is standard but optional 10-micron and 90-micron are available. Maximum operating pressure is 150 psi and the operating temperature is 35ºF to 300ºF.
