Fifty-three pounds of polyethylene before a drop of water goes in: the 68H is the heavyweight of Ronco's 33 gallon holding tanks, carrying roughly double the material of its siblings. In a rotomolded tank, that mass is wall thickness, and wall thickness is what survives frame flex, hard miles, and the point loads of an imperfect installation. Fleet coaches, rental rigs, and full-timers who count highway days in the hundreds are the natural buyers.
The duty is unglamorous and specific: 33 gallons of gray or black water, never potable, hitting about 275 pounds when full at 8.34 pounds per gallon. If the extra blank weight is unnecessary for your use, the 15H is the standard-weight sibling, and the 52H offers a defined 46 x 16 x 12.75 inch envelope for narrow bays.
Ronco Plastics rotomolds the 68H in Tustin, California, drawing on practice accumulated since 1974, and installs spin-weld or threaded fittings at order time, positioned to your marks. The drawing block below prints at scale: draw in the inlet, outlet, and vent from your existing plumbing and order the tank to that sheet. The rest of the waste range is at RV holding tanks, with the whole brand at the Ronco hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics 68H 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.
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.
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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.
