Ronco Plastics

Thirteen gallons is an honest weekend of gray water for two people, and the 26H is Ronco's compact way to carry it. At 16 lb out of the mold it is an easy tank to handle solo through a retrofit, and...

Molded rails are the 27H's argument. These integral flanges along the tank body take mounting straps or bolt-on brackets directly, letting the tank hang in the coach on its own structure, the way...

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...

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...

Replacing a holding tank starts with a tape measure, not a part number, and the 30H is one of the shapes you check once you know your cavity. It is a 22 gallon gray or black water tank, one of the...

Ronco molds six different 25 gallon holding tanks, and the 31H is the one to start from when you are mapping the family. Same capacity across the board; what changes is the envelope, and the envelope...

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...

Six inches. That is the whole vertical story of the 34H: a 10-gallon holding tank drawn out to 36 x 13 inches so it can live in a bay with almost no depth at all. Underfloor cavities in low-deck...

The 35H is a pancake: 9 gallons of holding capacity rolled out to 29.75 x 22.5 inches but standing just 8 inches tall. Ronco Plastics draws it this way for underfloor waste service where the frame...

At 30 x 12.5 x 7.25 inches, the 36H is what you spec when the waste tank has to share a bay with everything else: a 9-gallon holding tank barely more than seven inches tall, sized to slip under a...

The 37H is a 36-gallon gray/black holding tank, and like most of Ronco's waste line its exact outline lives on the technical drawing rather than in a headline dimension - print the drawing below, lay...