Ronco RV Holding Tanks

Two features separate the 8H from the plain boxes in Ronco's 22 gallon class, and both are about installation. The end dump puts the waste valve at the end of the tank, where slide-out dump hardware...

Two hundred eight pounds. That is what the 25H weighs when its 25 gallons of waste water are aboard, at 8.34 pounds per gallon, and it is the number your tank cradle, straps, and floor structure...

When the tank you are replacing has no legible part number, the 72H is one of four 27 gallon shapes Ronco keeps molding, and the family is best searched by elimination. Start with the dimensioned...

A 27 gallon black tank holds about 225 pounds when it is time to dump, and the 64H is built for exactly that duty cycle: fill over days, carry down the highway, drain in minutes, repeat for years. It...

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...

Thirty-five gallons of gray or black water is not a small load: full, the 101H is carrying roughly 292 lb of waste, which is why this tank is rotomolded as a single seamless piece of waste-rated...

A 27 lb shell that carries roughly 367 lb of waste - that is a working ratio of over 13 to 1, and it is what rotational molding does well: a seamless polyethylene body with material distributed where...

Shaped like a beam and installed like one: the Ronco Plastics B316 is a 69" x 11" x 11" square-section tube of a tank that lays 32 gallons along a keel line, a frame rail, or the dead corridor beside...

The B428 spreads 36 gallons across a 46 x 36 inch panel only 6 inches tall - a true underfloor tank, wide as a sheet of ply is deep and shallow enough to live between floor joists or under a raised...

The B556 spreads 20 gallons across a 26 x 25 inch near-square base only 8 inches tall. It is a plinth of a tank - the shape you want under a berth platform or cockpit sole where the structure above...

The B347 holds 40 gallons in a 34.75 x 26 x 11 inch molding that ships at just 38 lb - a low, light, wide blank that installs like a much smaller tank and stores like a much bigger one. Eleven inches...

The 70H is the 15-gallon holding tank you buy for the rough route. At 19 lb it carries meaningfully more polyethylene than the standard blank in this size, and that extra wall is what stands between...