Forty gallons is the workhorse size for gray tanks on mid-size coaches - big enough that showers do not fill it in a weekend, small enough to package under the floor. The 84H is the lightest of Ronco's four 40-gallon holding shells at 28 lb, a one-piece rotomolded polyethylene molding with no seams to fatigue and the outlet molded in.
Full weight is the number that matters for mounting: 40 gallons of waste runs roughly 334 lb, hanging from whatever straps or cradle you give it. The other three 40-gallon shapes are the 5H at 56.5 x 19 x 12.5 inches, the heavier-walled 103H, and the 71H; one size down is the 39-gallon 55H at 49 x 24 x 10 inches.
Gray and black water only; this is not a potable molding. Full range: RV holding tanks.
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 84H 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 84H - 40 Gallon Plastic RV Holding Tank video (62 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.
