Ronco has been molding the 1W since the mold library started growing in 1974, and the shape has stayed useful for a reason: 35 gallons in a 32.12 x 19.5 x 15 inch block that fits crosswise between the frame rails of a lot of coaches. It is the sort of tank you find when you pull a failed original out of an older motorhome and go looking for the same outline.
This is a light-duty potable molding - natural FDA-compliant polyethylene with a translucent wall, so a glance with a work light tells you how much water is aboard. Do not confuse it with the black-and-gray side of the catalog; fresh water tanks and holding tanks are different resins for different jobs.
Weight math worth doing before installation: the shell ships at 19 lb, but 35 gallons of water adds up to roughly 292 lb at 8.34 lb per gallon. If the 15-inch height will not clear, the RV2W carries the same 35 gallons at 12 inches tall; if you can go taller and shorter, see the RV34W at 33.5 x 19 x 16 inches. All the shapes are at RV water tanks.
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 RV1W 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 RV1W - 35 Gallon Plastic RV Water Tank (32.125" x 19.5" x 15.0") video (68 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.
