Mold number 105 tells you something before the specs do: this is one of the late additions to a holding-tank library that Ronco has been expanding since 1974, cut because installers kept hitting a 45-gallon cavity that the four older shapes would not fill. The 105H is the modern answer - 45 gallons of gray/black capacity in a 37 lb seamless rotomolded polyethylene shell.
Filled, it carries roughly 375 lb, the same load as every tank on the 45-gallon bench: the 83H, the heavy-walled 87H, and the light 75H all differ only in outline and shell build. One step down is the 44-gallon 96H; two up, the 47-gallon 97H.
Fit is settled on paper before anything ships: print the drawing below, match the outline to your bay, and mark your drain, vent, and inlet locations on the sheet. Ronco installs the fittings per order in Tustin, California, spin-welded or threaded exactly where you marked. Waste service only - the potable line at RV water tanks uses FDA-compliant resin; this tank does not claim it.
OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics 105H 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.
