When the tank you are replacing has no legible part number, the 72H is one of four 27 gallon shapes Ronco keeps molding, and the family is best searched by elimination. Start with the dimensioned members: if your cavity matches 43 x 22 x 11.25 inches, that is the 47H; if it is broad and shallow with a side-mounted valve, that is the 6H at 38 x 27 x 9. If neither matches, compare your measurements against this tank's drawing and the 64H, the other undimensioned sibling.
The 72H blank weighs about 22 pounds, holds 27 gallons of gray or black water, and carries no potable rating; full weight is roughly 225 pounds at 8.34 pounds per gallon. It is rotomolded polyethylene from Ronco's Tustin, California plant, the same shop that has supplied RV builders since 1974.
Fittings are the custom part: spin-welded or threaded, installed at order time wherever your plumbing needs them. Print the technical drawing further down this page, mark the inlet, outlet, and vent positions from your old tank, or click them into place with the fitting planner, and Ronco builds to your marks. The full waste line is at RV holding tanks. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics 72H 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.