Ronco Plastics 6H - 27 Gallon Plastic RV Holding Tank with Side Dump (38.0" x 27.0" x 9.0")

The side dump is the defining feature of the 6H: the waste valve exits through the side face of the tank instead of the bottom or end, which is how many coaches route their termination plumbing when the dump bay sits beside the tank rather than below it. The molding is broad and shallow, 38 x 27 inches across and just 9 deep, so it also solves height-limited installations that the deeper 27 gallon boxes cannot.

It is a gray and black water tank, no potable duty, weighing about 26 pounds empty and roughly 225 pounds full, 27 gallons at 8.34 pounds per gallon spread over a wide footprint that rewards full-length support. If your valve exits elsewhere, the 47H covers the conventional layout at 43 x 22 x 11.25 inches, and if you need the side-dump pattern in a bigger tank, the 20H runs 34 gallons at 63 x 20.25 x 8.5.

Ronco Plastics rotomolds the 6H in Tustin, California, continuing a line that started in 1974, and installs spin-weld or threaded fittings per order. Print the scale drawing from the block below, mark where the inlet and vent land relative to that side outlet, and your tank is molded to the sheet. The family lives at RV holding tanks, with everything else on the Ronco hub. OneSource Plastics is an authorized Ronco Plastics dealer.

Technical drawing: download the Ronco Plastics 6H 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.