Ronco Plastics 76H - 11 Gallon Plastic RV Holding Tank

The 76H is the heavy one. Where most 11-gallon blanks come off the mold in the low teens of pounds, this tank ships at 32 lb - nearly three times the material of its sibling. That extra polyethylene goes into wall thickness, and thick walls are what you want when a waste tank hangs off a frame that sees washboard roads, or when the tank doubles as a step surface in a cramped utility bay.

For weight-sensitive builds, the 49H offers the same 11 gallons in a lighter molding. If the extra-rugged direction is right but you need more volume, look at long heavy blanks like the 44H, a 12-gallon tank stretched to 80.75 x 14 x 6.75 inches. Everything in between is in the RV holding tanks category.

Duty is waste only: gray or black water, no potable use ever. Full, plan on roughly 92 lb of contents on top of the 32 lb tank. Ronco has rotomolded these in Tustin, California since 1974, and installs your fittings before it leaves the plant - print the drawing below and mark your fitting locations, then pick spin-weld or threaded on the order. See the rest of the line at the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.

Technical drawing: download the Ronco Plastics 76H 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.