Ronco Plastics Tanks

The 47H anchors the large end of Ronco's mainstream holding tank boxes: 43 x 22 x 11.25 inches, 27 gallons, the sort of tank that serves as the black tank under a full-time couple's fifth wheel. The...

Ronco molds exactly one 28 gallon holding tank, and the 23H is it, sitting alone between the four-shape 27 gallon family below and the rail-equipped 29 above. Solitary sizes usually trace back to a...

At 25 lb for 42 gallons of capacity, the 74H is the lightest shell in Ronco's 42-gallon holding quartet - the pick when the tank rides in a supported cradle or framed compartment and the installer...

Seventy inches long, 16 wide, 8 tall. The RV53W is essentially a fresh water girder - 38 gallons stretched into a profile that slides between floor joists or along a single frame rail where no...

Forty gallons of fresh water is boondocking range - a week of careful use for two people - and the RV10W is one of Ronco's two 40-gallon fresh moldings, listed on the maker sheet as the 10W L.D...

The side dump is the defining feature of the 6H: the waste valve exits through the side face of the tank instead of the bottom or end, which is how many coaches route their termination plumbing when...

A full 22H is an eighth of a ton of sewage riding your frame: 30 gallons at 8.34 pounds per gallon comes to about 250 pounds, and that number should drive the whole replacement job, from strap...

Same 30 gallons, different arithmetic: the 39H spreads its volume across 46 x 22 inches at only 9 inches tall, while its sibling the 22H stacks it deeper at 39 x 25 x 12. Pick by the dimension your...

Mold number 105 tells you something before the specs do: this is one of the late additions to a holding-tank library that Ronco has been expanding since 1974, cut because installers kept hitting a...

Twenty-nine pounds is all the 75H asks you to lift into position - the lightest shell on Ronco's five-deep 45-gallon holding bench, and a genuine difference when you are flat on your back under a...

Single-digit mold numbers are the old guard of Ronco's library, and the 5W is one of them - a 45-gallon fresh water shape that has been earning its tooling space in Tustin, California across five...

48 x 20 x 12 inches is a classic underfloor band: long enough to run between frame members, at 20 inches wide it drops between typical crossmember spacing, and 12 inches of height leaves room above...