Sizing a replacement holding tank is a one-way ratchet: you can plumb a bigger tank into a smaller role, but never the reverse, and the 38H's 32 gallons make it the step-up candidate when your old 30 gallon tank always seemed to fill on day two. The blank weighs about 29 pounds and molds in gray and black water duty only; no potable use, ever, for any H-series tank.
Full weight scales with the upgrade: 32 gallons at 8.34 pounds per gallon is roughly 267 pounds, so if you are upsizing, re-evaluate the straps and floor rather than assuming the old mounting has margin. The neighboring shapes map the alternatives: the 22H at 39 x 25 x 12 inches below, the 52H at 46 x 16 x 12.75 just above, and the side-dump 20H at 63 x 20.25 x 8.5 for low-and-long bays.
Ronco Plastics rotomolds the 38H in Tustin, California, where the company has built tanks since 1974, and installs your fittings at order time, spin-welded or threaded to the layout you provide. Print the technical drawing from the block below, mark inlet, outlet, and vent, or click them into the fitting planner, and the tank ships matched to your coach. Full catalog: RV holding tanks. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics 38H 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.
