JEGS Expansion Tank is constructed from formed 0.090" wall aluminum and welded for strength and durability. Allows the cooling system to be filled from the expansion tank to minimize air in applications where the radiator is mounted low in the chassis. Includes 1/8" NPT x 5/16" hose overflow fitting, 1/4" NPT inlet bung and 1/2" NPT outlet bung. 1-1/2 quart capacity. Measures 7" H x 6.5" W x 3-3/4" D. Accepts standard radiator pressure caps. Available with a stamped or billet aluminum neck and in clear anodize or polished finish. .