Seven pounds. The RV41W is light enough to hold with one hand while you test-fit it in a gear locker, which is exactly how most of these get bought: an 8-gallon fresh water tank at 17 x 12.75 x 10 inches for camper vans, truck campers, and DIY builds where water lives in a cabinet instead of under the floor.
The molding is light-duty natural polyethylene, FDA-compliant for potable water, and translucent enough to check your remaining supply at a glance - no sender, no gauge, just look. Full, 8 gallons weighs about 67 lb, a load a plywood shelf handles easily if it is screwed to structure.
Nearby sizes: the 8-gallon RV21W at 17.75 x 15.75 x 8.25 inches is squarer and shallower, the 9-gallon RV56W at 20.5 x 12.75 x 8 inches adds a gallon in a lower profile. The rest live under RV water tanks, with marine shapes under boat 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 RV41W 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 RV41W - 8 Gallon Plastic RV Water Tank (17.0" x 12.75" x 10.0") video (71 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.
