Ronco molds exactly one 28 gallon holding tank, and the 23H is it, sitting alone between the four-shape 27 gallon family below and the rail-equipped 29 above. Solitary sizes usually trace back to a specific OEM contract, which is good news for the owner of that coach: the tank that fits is still in production, decades later, from the original kind of maker. The blank runs about 32 pounds, on the substantial side for its class.
Duty is the standard H-series brief: gray water or black water, never potable, with a full-load weight around 234 pounds, 28 gallons at 8.34 pounds per gallon. Check straps, cradle, and floor before the swap; the tank is usually the healthiest part of a thirty-year-old installation.
If 28 gallons was approximate, bracket it. The 47H holds 27 gallons at 43 x 22 x 11.25 inches, the 27H adds molded mounting rails at 29 gallons, and the 22H reaches 30 gallons at 39 x 25 x 12. Whichever wins, it ships from Tustin, California, where Ronco has rotomolded since 1974, with spin-weld or threaded fittings installed to the marks you make on the printable drawing below this description. Full range: RV holding tanks. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics 23H 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.