Ronco Plastics Tanks

Ronco has been molding the 1W since the mold library started growing in 1974, and the shape has stayed useful for a reason: 35 gallons in a 32.12 x 19.5 x 15 inch block that fits crosswise between...

The RV6W is the long way to carry 36 gallons of fresh water: 48.38 inches of length against a slim 14.38 inch width, standing 13.25 inches tall. That proportion is made for chase-frame gaps -...

A 30 x 22 inch footprint at 14 inches tall makes the RV7W the squarest of Ronco's mid-thirties fresh water tanks - the shape you want under a dinette seat or in a boxy compartment where a long skinny...

Under the floor of most travel trailers is a shallow zone about a foot deep, and the RV38W was drawn for exactly that: 36 gallons of fresh water at 45 x 18.5 inches and only 11.25 inches of height...

Twelve inches tall, 40.5 x 25.25 inches of footprint: the RV33W spreads its 46 gallons wide and flat, the shape you reach for when there is floor area to spare but the lid of the compartment sits low...

Ronco's price sheet actually stamps this mold at 58 gallons; we catalog the RV48W at a working 55. Under-promising is a good habit in a water tank, and the dimensions are honest either way: 40 x 24 x...

The 42H is a wall of a tank: 91.5 inches long, 16 inches tall, and only 7 inches thick. Fifteen gallons of holding capacity stood on edge like a panel. Builders spec this shape to run vertically...

Gray water or black water - the 77H does not care, but your plumbing layout does, and that is the decision this tank is usually bought to settle. As a 20-gallon blank with no pre-molded valve...

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...

At about 22 pounds, the 95H is the lightest blank among Ronco's six 25 gallon holding tanks, which matters most at installation time, when you are the one holding it overhead in a wheel well with one...

If you sketched a generic RV holding tank from memory, you would draw something very close to the 11H: 37 x 20.25 x 11.5 inches, a proportioned rectangle that fits the classic under-floor waste bay...

Dump geometry is the quiet reason waste tank replacements go sideways, and it is the reason the 14H exists as a distinct 26 gallon molding. Its outlet is configured for an end dump, valve at the end...