The 41H is built around its outlet: a 12-gallon holding tank with a side dump, meaning the waste valve exits the sidewall rather than the bottom. On rigs where there is no clearance below the tank for a bottom drain - or where the dump plumbing has to run horizontally to reach the outlet bay - a side-dump molding saves you from elbows and traps that clog.
The footprint is nearly square: 28 x 24 x 9.5 inches, 17 lb empty, about 100 lb full. That squat, wide stance keeps the liquid surface broad and shallow, which reduces slosh impact when a partly full tank is on the road. Gray or black water only; this molding makes no potable claims and never should.
Ronco carries the side-dump idea up the size range from its Tustin, California plant, running since 1974: the 6H is a 27-gallon side dump at 38 x 27 x 9 inches, and the 61H a 42-gallon side dump at 45 x 24.5 x 12 inches. Bottom-outlet and end-dump alternatives fill out the RV holding tanks category.
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 41H 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
Product video. Watch the Ronco Plastics 41H - 12 Gallon Plastic RV Holding Tank with Side Dump (28.0" x 24.0" x 9.5") video (68 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.
