Ronco Marine Holding Tanks

The B446 is another of Ronco's floor tanks: 24 gallons in a 44 x 26 x 6 inch slab. Six inches of height means it lives where furniture and floors already are - under a dinette, beneath a raised van...

The B449 threads 32 gallons through a 44.5 x 15.5 x 12.5 inch envelope - long, narrow, and barely a foot tall, the shape that follows a hull side, runs outboard of an engine, or slides down the...

There is a reason the Ronco Plastics B473 weighs 82 lb when other 22 gallon tanks in the line weigh far less: this molding carries substantially more polyethylene in its wall. If your installation...

Thirty-four gallons, nine and a half inches tall: the Ronco Plastics B381 is a 34 x 26 x 9.5 inch B-series molding for underfloor installs that still want real capacity. It ships at a modest 35 lb,...

The B225 is a 22.5 x 22.5 inch square, 12 inches deep, holding 25 gallons - a footprint with no long axis, which is rarer and more useful than it sounds. Corner voids, square hatched compartments,...

The B250 is nearly square in plan - 23.5 x 23 x 12 inches - which makes it the tank for the bay that is wide and short rather than long and narrow. Twenty-five gallons ride in a footprint under two...

The Ronco Plastics B281 packs 21 gallons into a near-cube - 19.88" x 16.88" x 16.38" - which is the most efficient way to get real capacity through a small locker opening. Cubes waste the least wall...

Six inches tall. That is the whole story of the B425: a 25 gallon capacity flattened into a 36 x 32 x 6 inch pancake that disappears under floors no other tank format can use. Underfloor voids in...

The B189 is one molding with two careers. Ronco lists it as a 30 gallon marine water or waste holding tank, and the "or" is literal: the blank shell leaves Tustin with no fittings at all, and what...

Shaped like a beam and installed like one: the Ronco Plastics B316 is a 69" x 11" x 11" square-section tube of a tank that lays 32 gallons along a keel line, a frame rail, or the dead corridor beside...

The B428 spreads 36 gallons across a 46 x 36 inch panel only 6 inches tall - a true underfloor tank, wide as a sheet of ply is deep and shallow enough to live between floor joists or under a raised...

The B556 spreads 20 gallons across a 26 x 25 inch near-square base only 8 inches tall. It is a plinth of a tank - the shape you want under a berth platform or cockpit sole where the structure above...