Boat Tanks

The B232 is a tank shaped like a floor joist: 48.5 x 10.75 x 8 inches, four feet long, narrower than a sheet of notebook paper, and holding 18 gallons anyway. Shapes like this are not designed at a...

A 21 x 21 inch square, 11.25 inches deep, 20 gallons: the B233 is marine tankage at its most rational. No long axis means no wrong orientation - the tank drops into a square locker or a cockpit void...

The B234 keeps 20 gallons under nine inches tall. Its 33.25 x 17 x 8.75 inch envelope is drawn for the underfloor middle ground - shallower than a locker, deeper than a chase - which happens to be...

Six inches. That is the whole vertical story of the B235, and it is the reason this tank exists: 18 gallons spread across a 40.75 x 18 x 6 inch pancake that slides under a berth, a cockpit sole, or...

The B236 is sold exactly as Ronco molds it: a 20 gallon marine water tank with no fittings at all. That is not a shortcoming - it is the point. Twenty gallons is a sweet spot for a weekender: enough...

The B257 packs 20 gallons into an 18.5 x 18 x 16 inch near-cube - the most compact way Ronco molds this capacity. Where its slimmer siblings trade length for a low profile, this one trades nothing...

Twenty-two gallons is more than a day tank and less than a cruiser tank - the capacity for the boat or camper that goes out for a long weekend and hates rationing. The B276 carries it in a 23 x 16.88...

The Ronco Plastics B294 holds 18 gallons of fresh water - the size that fits a pocket cruiser, a workboat cuddy, or a camper conversion where 10 gallons is not enough and 30 will not fit. The molding...

Twenty-two gallons at 28 lb empty: the B337 is a standard-wall marine blank in the size that suits a pocket cruiser or a weekender's second tank. There is a strong case for splitting capacity at this...

Eighteen gallons is a deliberate size: big enough to be a boat's primary water supply for coastal cruising, small enough to pass through a real locker opening and sit in spaces that 30-gallon tanks...

Ronco molds 22 gallons in more than one blank, and the B348 is one of the two lightweight takes - 28 lb of standard-wall polyethylene shaped for the protected compartments where most water tanks...

Twenty gallons is the honest minimum for a boat you sleep on - enough for two people to cook, clean, and drink for a weekend without counting cups. The B349 delivers it as a 28 lb bare marine blank,...