Pressure / Vacuum Vent, 2", 20.000 @ 2.5 PSI, Pressure 2-oz., Vacuum 1-oz.

Aluminum Body & Hood. Brass raised metal seats and poppets. No. 548 has a threaded gauge hatch. Horizontal discharge can be assembled to relieve in any of three directions. Capacity range is 2"

Note: For Fuels Only - See 748ALT in related items for chemical tanks.
Vents are available with pressure rating up to 16 oz. When ordering vents indicate size, product used and above or underground tank.