This 31” wide oval cross section tank is designed for indoor or outdoor, stationary or transportable applications. Tanks are manufactured from medium-density polyethylene with U.V. inhibitors and designed for containment of liquids of up to 1.7 specific gravity. Tank is furnished with 16” vented Lid Assembly with 16” tether and both 3/4” and 1-1/4” FPT (female pipe thread) polypropylene fittings with Santoprene gaskets as standard equipment. Two strap recesses are provided around the tank to facilitate anchoring. Tanks require the bottom to be fully supported with a cradle for use. Gallon indicators are included on one end and one side of the tank. Ends of tanks feature fitting flats to facilitate a variety of installation options. Bottom of tanks feature a collection sump for full drain out.