Seven and a half inches of height is the RV37W's defining spec. This 14-gallon fresh water tank spreads across 29.75 x 16 inches so that it can hide in floor channels and under-seat plenums where even a 9-inch tank would force the furniture up. Ronco's sheet flags it L.D. - light-duty - which is the potable designation: FDA-compliant natural polyethylene, translucent enough to see your water level through the wall.
Low tanks reward careful fitting placement. With the outlet at one end and the fill on top, a 7.5-inch water column drains cleanly without a sump; put the pickup at the low corner of your installation slope.
Two siblings share the 14-gallon class in very different bodies: the RV3W at 29.75 x 13.88 x 8.12 inches is narrower for tighter runs, and the RV11W stacks 14 gallons vertically at 21 x 13 x 13 inches. The rest of the potable range is in the RV water tanks category.
Rotomolded in Tustin, California since 1974. It ships at 11 lb and carries about 117 lb of water when full. 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:
| Fitting | Size | Location |
|---|---|---|
| Inlet | 1-1/4" female NPT | Top center |
| Outlet | 1/2" female NPT | Bottom center |
| Vent | 1/2" female NPT | Top corner |
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 RV37W 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.
Freight
LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
See this tank
Interactive 3D model with live fill. This tank has an interactive 3D model built to its manufacturer dimensions. Rotate it, and set a fill level to see how much liquid it holds at any height. Open the 3D view on the product photo above. Download the 3D model (GLB).
Product video. Watch the Ronco Plastics RV37W - 14 Gallon Plastic RV Water Tank (29.75" x 16.0" x 7.5") video (59 seconds) with dimensions, fittings and shipping notes.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.
