Product Description Specifications Tank Capacity: 3 gallon; Ports: Seven (7) 1/4" NPT;All steel construction, manufactured to SAE J10 and FMVSS 121 standards, Internally Coated for Corrosion Resistance; Black epoxy finishInstallation InstructionsInstallation InstructionsWarranty Category: Suspension>Air Tanks MPN: 6351RT Product ID: 716709 Proposition 65: Y