Ronco RV Holding Tanks

Twelve inches wide, twelve inches tall, twenty long: the B124 is a 14-gallon tank shaped like a channel section, and channels are where it lives - between stringers, alongside a keelson, in the...

The Ronco Plastics B175 packs 13 gallons into a 20 x 13 x 13 inch cube that ships at just 16 lb - small enough to install in spaces most people would not call a tank bay at all. It belongs to Ronco's...

The B245 is the tank you spec when the space is small but the need is real: 14 gallons in a 24.5 x 16.5 x 9.12 inch box that tucks under a dinette seat, a cockpit locker shelf, or a van conversion's...

Slim is the B251's whole argument: 27.5 x 14.75 x 9.5 inches, a 15 gallon tank barely wider than a toolbox. It slips behind console panels, alongside stringers, under bench seats - the leftover...

One molding, two possible jobs: the Ronco Plastics B279 is a 12-gallon marine and RV tank that leaves the mold as a sealed blank and becomes either a fresh water tank or a gray or black waste holding...

The Ronco Plastics B320 is a compact 15-gallon block - 17.5" x 16.75" x 13.75" - sized for the under-seat lockers and small bays where most tanks give up. Its nearly square footprint stands stable...

The Ronco Plastics B375 is nearly a cube: 11 gallons in a 17 x 16 x 11 inch block that drops into a locker corner, a vanity base, or the dead space beside a wheel well. B-series means dual-role; the...

The Ronco Plastics B388 is a 15 gallon shallow rectangle, 24 x 18.5 x 8.5 inches, sized for van conversions, small cuddy cabins, and utility installs where the tank hides under a seat or floor panel...

Filled to the top, the B548 weighs almost exactly 100 lb - 12 gallons of water in a 24 x 13.5 x 10 inch molding that ships at just 17 lb. That round number is a useful design fact: it is the weight...

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 B213 is the shape most people picture when they picture a tank: a clean 28 x 16 x 12.25 inch rectangle, 20 gallons, no exotic proportions. That ordinariness is its virtue. It fits benches,...

Some hulls only give you a slot, not a bay. The Ronco Plastics B369 is built for that slot: 18 gallons in a 47.5 x 11.38 x 8.5 inch chase, barely wider than a bilge stringer. It is a B-series...