The BOAT11W is nearly a cube: 21 x 13 x 13 inches, 14 gallons. Cubes are the tank-fitter's wildcard - they stand any way you need, tuck into console bases and transom corners, and waste almost no bounding-box volume - and this one wraps that versatile shape in Ronco's heavy-duty marine wall at a blank weight of just 9 lb.
Fourteen gallons full is about 117 lb of fresh water, a load almost any reasonable shelf or sole can carry, which is part of why this molding ends up in skiffs, day boats, and camp installations alike. FDA-compliant potable polyethylene throughout.
Fittings are installed per order at the Tustin, California plant - spin-welded or threaded wherever you mark them, as Ronco has operated since 1974. The cube shape means fittings can go on whichever face ends up on top, so print the drawing below, decide the tank's orientation first, and then lay out your penetrations in the on-page fitting planner.
More compact marine tanks live under boat tanks, similar small sizes under RV water tanks, and the full line on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.