Two hundred eight pounds. That is what the 25H weighs when its 25 gallons of waste water are aboard, at 8.34 pounds per gallon, and it is the number your tank cradle, straps, and floor structure actually care about. The tank itself is almost an afterthought at about 26 pounds empty; holding tanks are structural problems disguised as plumbing problems, and the smart replacement job inspects the mounting as carefully as the molding.
The 25H is one of six 25 gallon shapes Ronco Plastics keeps in rotation, all gray and black water rated, none potable. Its siblings cover the geometric spread: the 31H and 95H among the compact shapes, and the heavy-wall 98H when the installation is punishing. Check your cavity against the drawing on each page; same capacity never means same fit.
Every one comes from Tustin, California, where Ronco has rotomolded since 1974, with fittings installed at order time, spin-welded or threaded to your marks. Print the scale drawing below, note your inlet, outlet, and vent positions, or click them into the fitting planner, and the tank arrives plumbed for your coach. The family index is at RV holding tanks. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics 25H 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.
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).
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.
