Start with the drawing on this one.
At 16 lb empty the 104H sits at the light end of the 15-gallon class, easy to trial-fit repeatedly through an access hatch. Full, it carries about 125 lb of gray or black water - and waste water is all it will ever legally carry; holding tanks make no potable claims.
Its classmates cover the other bases: the 18H is the long-running standard 15-gallon blank, the 70H the heavy-wall 15-gallon build, and the 42H a 15-gallon panel tank at 91.5 x 7 x 16 inches. Compare the full holding range in the RV holding tanks category or the maker's whole catalog at the Ronco Plastics hub.
Rotomolded in Tustin, California by Ronco, at it since 1974. One Source Plastics is an authorized Ronco Plastics dealer.
Fittings
This holding tank ships with its outlet molded in, ready to plumb. Add the Ronco 3-inch uniseal (F3UNISEAL), a loose pipe-to-tank seal you press into the outlet yourself, with no threads or nuts.
Technical drawing: download the Ronco Plastics 104H dimensional drawing - print it to plan your install. The outlet is molded in. Add the Ronco 3-inch uniseal to connect it.
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).
Product video. Watch the Ronco Plastics 104H - 15 Gallon Plastic RV Holding Tank video (64 seconds) with dimensions, fittings and shipping notes.
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.
