Ronco Plastics RV11W - 15 Gallon Plastic RV Water Tank (21.0" x 13.0" x 13.0")

Ronco's maker sheet calls the RV11W "11W L.D. (14 GAL) 21X13X13" - fourteen gallons of fresh water in a 21 x 13 x 13 inch near-cube. That tall, short-footprint geometry is the point: it drops into a locker, a bench seat pedestal, or a galley cabinet void, places where the usual long flat water tanks cannot follow.

L.D. is Ronco's light-duty potable spec: FDA-compliant natural polyethylene, translucent so the water level reads through the wall. The tank itself is 9 lb; the water, at 8.34 lb per gallon, brings a full tank to about 117 lb concentrated on a compact 21 x 13 inch base - so set it on solid floor and run a strap over the top, not just around the sides.

Its closest relative is the RV16W, a 12-gallon cube at 18 x 13 x 13 inches sharing the same cross-section; if your space runs flat instead of tall, the RV37W holds 14 gallons at 29.75 x 16 x 7.5 inches. Every fresh-water shape is in the RV water tanks category, and the same L.D. moldings serve boat installations.

One Source Plastics is an authorized Ronco Plastics dealer.

Standard fitting package

Choose the standard fitting package for $30 and we install these three fittings before the tank ships:

Want to place the fittings yourself? Choose the blank tank: it ships with no fittings at no charge. Add the 90-2218 fitting kit ($55.75). It includes an access plate with six stainless steel screws, washers and nuts to mount it, a 1-1/2" NPT plug, two 1/2" NPT plugs, two 5/8" thru-hull fittings for supply and vent, and one 1-1/2" thru-hull fitting for fill.

Technical drawing: download the Ronco Plastics RV11W dimensional drawing - print it to plan your install. Choose the standard fitting package (shown in the fitting layout image), or order the tank blank and place your own fittings.