RV Holding Tanks

The 102H comes from the newest chapter of Ronco's tooling - the 100-series molds - applied to the oldest job in the catalog: 20 gallons of waste holding. Later-generation molds reflect what five...

The Todd Marine 25-gallon marine water & holding tank (85-1532WH) is a one-piece rotationally molded polyethylene tank engineered for potable water storage or waste holding aboard boats and RVs. The...

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...

The 41H is built around its outlet: a 12-gallon holding tank with a side dump, meaning the waste valve exits the sidewall rather than the bottom. On rigs where there is no clearance below the tank...

Ronco molds four different 15-gallon holding tanks, and the 18H is the general-purpose one - the blank you choose when no single dimension of your bay is doing anything unusual. At 16 lb empty it...

The 59H packs 10 gallons of waste capacity into a 28 x 14.5 x 11 inch envelope, which makes it one of the shortest holding tanks Ronco molds: at 28 inches end to end it clears bays that a standard...

The 100H is the tank you buy when the holding tank that died was an odd one. Ten gallons is the working size for pop-ups, truck campers, and small travel trailers, and Ronco Plastics molds a whole...

The 76H is the heavy one. Where most 11-gallon blanks come off the mold in the low teens of pounds, this tank ships at 32 lb - nearly three times the material of its sibling. That extra polyethylene...

Single-digit part numbers in Ronco's catalog mark the old guard, and the 7H is one of them - a 16-gallon holding tank that has been in continuous production long enough to have replaced its own...

The 12H goes deep instead of wide: 18 gallons in a 22 x 23 x 12.5 inch cube, the deepest draw in its capacity class. A tank like this occupies a compact square of floor - barely two feet on a side -...

The 57H solves the corridor problem: 16 gallons of holding capacity in a 63 x 10 x 8 inch run, a tank shaped like the space beside a driveshaft or along the outboard side of a frame rail. Ten inches...

On paper the 58H and its sibling are twins - both 16-gallon holding tanks, both 63 x 10 x 8 inches, both 19 lb blanks. The difference lives in the mold: each carries its own arrangement of molded...