Ten inches of height is the entire design brief of the Ronco Plastics B162: 30 gallons pancaked across a 30 x 24 x 10 inch footprint so it can live under a berth, a dinette, or a raised RV floor and leave the space above still usable. It is a marine water / waste series molding - order potable fittings and it is a fresh water tank in FDA-compliant polyethylene; order waste fittings and it is a 30 gallon gray or black holding tank sitting exactly where gravity wants a holding tank: low.
Flat tanks live or die by port placement, and Ronco's per-order fitting installation - spin-welded or threaded, at your marks - is what makes a 10 inch tall tank practical. The outlet must sit at the true low point and the vent must reach the high edge, or a shallow tank never fully drains or fully fills. Print the drawing below, mark it against your floor's slope, and lock it in with the fitting planner on this page.
The shell ships at 30 lb and holds about 250 lb of water - spread over that wide footprint the load is gentle, but support should still be continuous. Molded in Tustin, California since 1974. Compare low-profile options at boat tanks and RV water tanks, browse the Ronco Plastics hub, and price shipping at the freight estimator. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B162 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.
