Ronco RV Holding Tanks

The 86H is a 65-gallon holding tank for builds where the bathroom is not an afterthought - toy haulers with full showers, bus conversions, mobile grooming and service rigs. Sixty-five gallons of gray...

The 103H is the heavyweight of Ronco's four 40-gallon holding shells - 50 lb of polyethylene before a drop of waste goes in, against 28 to 33 lb for its capacity twins. Ronco molds the same volume in...

The Ronco Plastics B508 closes out this run of the B-series with 60 gallons in a 48 x 25 x 13 inch profile, a big-capacity tank that still ducks under a bunk. Thirteen inches of height is the...

Sixty gallons laid out 55 inches long, 20 wide, and 14 tall: the B543 is shaped like a chassis rail run because that is where it usually lives. RV underfloors, the tunnel beside a boat's engine bed,...

Lay a sheet of plywood flat and you have roughly the idea: the 3H spreads 35 gallons across a 64 x 32 inch footprint at just 8 inches tall, the widest, flattest holding tank in this stretch of...

Buy the 7W for one job and it will do either. This 35-gallon molding is Ronco's dual-role blank: plumbed with fresh-water fittings it serves as a supply tank, plumbed for drainage it becomes a gray...

Ronco molds four different 35-gallon holding tanks, and the reason is simple: no two coach floors are framed alike. The 90H is one of those four shapes - same 35-gallon capacity, its own footprint...

At 27 lb of shipping weight for 35 gallons of capacity, the 93H is the lightest of Ronco's four 35-gallon holding shells - a real consideration when the tank is going into a trailer where every pound...

The 97H sits near the top of Ronco's holding range: 47 gallons of gray/black capacity, with only the 48 and 50 gallon shells above it. This is extended-boondocking territory - a waste tank sized so...

A 39 lb molding that will carry roughly 400 lb of waste: that ratio is the whole argument for rotomolded polyethylene, and the 92H is Ronco Plastics' 48-gallon RV holding tank in one of two shapes...

When a family of six dry-camps for a long weekend, the holding tank is what ends the trip early. The 91H is the answer at the top of Ronco Plastics' RV waste line: 50 gallons, the largest holding...

The B538 is the stretched version of Ronco's compact near-cube marine tank: same 22-inch width, same 20-inch height, drawn out to 26 inches long for 45 gallons. If you measured a compartment for the...