The Power Products 3/4" Main Port B, 1/4" Drain Port E Air Tank is designed to provide a steady supply of compressed air to the braking system, ensuring efficient and reliable brake operation especially when hauling heavy loads. The air tank is constructed from high-grade materials for superior strength and durability, and features corrosion resistance properties that reduce the frequency of maintenance and repair costs. FleetPride is your First Click in Heavy Duty®.