Prevent Cap Assembly, 2" MPT

Gasoline stored in above ground tanks equipped with open vent caps can cost you many dollars in evaporated gasoline. You can reduce such loss by installing a PreVent cap. PreVent maintains about 2.5 PSI in the storage tank, preventing vapors from leaving the tank. Diesel fuel presents another problem - water condensation inside the tank. The PreVent cap will reduce such condensation. Relieves vacuum for pump out rates to 30 GPM.

• For Above-Ground Storage Tanks
• Gasoline and Diesel Fuel
• Used as a Fill Cap
• Convenient to Lock (K408A)

STOPS or REDUCES:
• Evaporation Loss
• Water Condensation
• Gasoline Weathering
• Loss of starting quality
• Loss of delivered Octane Rating
• Gum Formation
• Crankcase Oil Dilution