This Firestone air tank provides a source of compressed air for an air spring system. Tank has 5-gallon capacity, (6) 3/8 in. NPT ports, (3) 1/4 ports and (1) 1/8 port. Tank is enamel coated, 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 5 gallons of compressed air     Includes (6) 3/8 in., (3) 1/4 in. and (1) 1/8 NPT ports     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: 34 in. long x 7 in. diameter     Tank capacity: 5 gallons     Inflation ports: 3/8 in., 1/4 in. and 1/8 in. NPT     PSI: Maximum of 150     2-Year limited warranty