The Ronco Plastics B376 puts 45 gallons into a 38 x 22 x 14 inch footprint, shorter and wider than the keel-run tanks of the same capacity. That proportion suits transverse mounting: across an RV basement bay, under a dinette, or athwartships in a hull. As a B-series dual-role molding, the food-grade shell becomes a potable fresh water tank or a gray or black holding tank purely through fitting selection.
A full 45 gallons weighs about 375 lb at 8.34 lb per gallon, and the empty molding ships at 90 lb, so this is a tank you locate over structure, not over a thin panel.
The factory installs every fitting per order, spin-welded or threaded to your marks. Print the drawing below, sketch the plumbing as it actually runs in your rig, and use the fitting planner on this page to finalize the order. That build-to-order discipline has defined Ronco's Tustin, California shop since 1974.
See boat tanks, RV fresh water tanks, and the freight estimator. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B376 dimensional drawing - print it to plan your install and mark exactly where you want fittings located; Ronco installs spin-weld or threaded fittings to your marked spec.