Ronco RV Holding Tanks

The 62H is a square: 24.5 x 24.5 inches, 11.5 deep, 26 gallons. Square tanks exist because square holes exist, usually the bay left over between two frame members after everything else was packaged,...

Thirty-four gallons, nine and a half inches tall: the Ronco Plastics B381 is a 34 x 26 x 9.5 inch B-series molding for underfloor installs that still want real capacity. It ships at a modest 35 lb,...

The B225 is a 22.5 x 22.5 inch square, 12 inches deep, holding 25 gallons - a footprint with no long axis, which is rarer and more useful than it sounds. Corner voids, square hatched compartments,...

The B250 is nearly square in plan - 23.5 x 23 x 12 inches - which makes it the tank for the bay that is wide and short rather than long and narrow. Twenty-five gallons ride in a footprint under two...

Six inches tall. That is the whole story of the B425: a 25 gallon capacity flattened into a 36 x 32 x 6 inch pancake that disappears under floors no other tank format can use. Underfloor voids in...

The 29H is the proportionate one: 16 gallons at 36 x 22 x 9.25 inches, a footprint close to a standard underfloor bay in mid-size travel trailers. No extreme dimension, no clever geometry - just a...

Twenty-six pounds of polyethylene for 17 gallons of capacity makes the 2H one of the stoutest builds in Ronco's mid-size holding range. That material ratio is the spec to notice: heavy walls resist...

Between the crowded 17-gallon class and the popular 19s and 20s, the 69H holds the 18-gallon line - a capacity Ronco keeps in the range because OEM bays were built around it and replacements have to...

The 43H runs 81 inches along a frame rail while standing just 7.75 inches tall and 11 inches wide - 20 gallons of holding capacity shaped like a structural member. Rail tanks like this are how...

Eighty-three inches. The 33H is nearly seven feet of holding tank, 13.5 inches wide and 10 deep, molded for the space almost no replacement tank fits: the long run between frame rails under a coach...

Where most 22 gallon holding tanks spread out, the 53H digs down: 30 x 22 inches of footprint and a full 13.5 inches of depth, the deepest shape in Ronco's 22 gallon family. That geometry suits...

The 28H solves a packaging problem: 53 inches long but only 11.25 wide, it slips into the narrow chase between frame members where a conventional holding tank simply will not go. Depth is a whisker...