- Include a flame arrester
- Vacuum relief is manual or automatic (depending on model) at 5 psig of pressure
- Permit 4 or more gpm flow through a 3/4″ faucet
- Fm approved, 2″ npt connector
CODE: 20Q08006-W – Non-metallic, vertical vent, for chorinated solvents. Auto vacuum relief. 20Q08101-W – Brass vertical vent for petroleum based application. Auto vacuum relief. 20Q08300-W – Brass horizontal vent for petroleum based application. Manual vacuum relief. 20Q08306-W – Stainless steel horizontal vent for corrosives and general solvents. Manual vacuum relief.