Frienda 2 Pcs Transfer Tank Vented Fuel Diesel Tank Cap, Venting Pressure Fuel Gas Cap for 2 Inch Base for Diesel Transfer Auxiliary Storage Truck Tool Box, Vented Design, Top Cover Only

Universal Compatibility and Application: this 2 pack of transfer tank vented caps is expertly designed to be widely compatible with any diesel transfer tank base featuring standard 2 inch NPT threads; It compatible with Fill-Rite transfer tank caps; The versatile design makes it suitable for use across various applications including main fuel tanks, auxiliary fuel tanks, mobile refueling equipment, gas storage

Dual Exhaust: when the cap is loosened, the transfer diesel tank cap releases dangerous vapors from inside the tank to the outside, preventing excessive expansion of the fuel tank; It also allows air to enter the diesel transfer tank to prevent vacuum formation and tank collapse during fuel extraction

Leak Prevention: with spring loading and an internal gasket, the fuel transfer tank cap is airtight when tightly closed, preventing leaks and excessive gas vapor leakage, even while driving on the road

Easy Installation: installing and using the fuel tank cap is very simple; Simply align the breather cap with the slot, press down, and rotate clockwise to fully secure the diesel tank cap; When you want to remove the fuel tank cap, slowly rotate counterclockwise to the slot; To release pressure, press down and twist to lift and remove the inner cap

Dual Exhaust: heavy duty diesel tank cap: made of iron, with an internal spring-loaded rubber sealing ring, effectively preventing diesel evaporation and leakage, preventing external dust from entering the fuel system, and providing long-term protection for the fuel tank; The fuel tank vent cap package includes only one removable fuel tank cap