This Firestone air tank provides a source of compressed air for an air spring system. Tank has 14 - gallon capacity and (2) 14 in. NPT ports. Tank is enamel coated to resist corrosion, tested to be SAE J10 compliant and capable of 150 psi. Features Provides compressed air source for an air helper spring system Allows for faster inflation of air springs Holds 14 gallon of compressed air Includes 14 in. NPT ports (2) Steel tank with brass fittings Resists corrosion with internal and external enamel coating Is SAE J10 compliant Operates at up to 150 psi of maximum pressure Specs Tank dimensions 6 in. long x 4 in. diameter Tank capacity 14 gallon Inflation ports 14 in. NPT PSI Maximum of 150 2 - Year limited warranty