Ronco Plastics 18H - 15 Gallon End Dump RV Holding Tank With Rails

Ronco molds four different 15-gallon holding tanks, and the 18H is the general-purpose one - the blank you choose when no single dimension of your bay is doing anything unusual. At 16 lb empty it handles easily during a retrofit, and 15 gallons covers the gray water of a long weekend for two without pushing into the larger footprints.

The other three 15s each solve a specific problem: the 42H is a 15-gallon panel tank at 91.5 x 7 x 16 inches for rail and wall mounting, while the 70H is the heavier-wall 15-gallon build and the 104H a 15-gallon alternative from the newer mold series. Comparing their drawings against your bay is a five-minute job that saves a return.

Like the whole H line, this is a waste vessel for gray or black water - no potable service, ever. Full weight runs about 125 lb, so plan straps and supports for that, not the empty weight. More sizes in 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 18H dimensional drawing - print it to plan your install. The outlet is molded in. Add the Ronco 3-inch uniseal to connect it.