Cim-Tek 60002 Pre-Vent 2 inch NPT(M) tank breather cap with anti-theft locking arm

Cim-Tek 60002 Pre-Vent 2 inch NPT(M) tank breather cap with anti-theft locking arm 
Widely used on small ground farm, commercial petrol and distillate tanks, fuel transfer and small oil storage tanks and industrial oil transfer tanks.
Features:
- fill cap and breather
- anti-theft lockable security arm
- pressure and vacuum release that reduces evaporation in fuel storage tanks
- helps maintain the quality of stored fuel. 
- helps to maintain fuel quality by reducing condensation and evaporation loss
- designed to divert rain and condensation away from the fill hole
- allows up to 30 gpm fluid removal
- pressure cap valve opens at 1.25 lbs cracking pressure while the vacuum release opens at 0 to .5 ounces when the tank cools
- limits the release of vapors that escape into the atmosphere protecting the environment