Forty-five gallons is the capacity that turns a coastal boat into a passagemaker on paper - enough fresh water to stop planning stops around taps. The Ronco Plastics B155 packages it in a one-piece polyethylene molding, FDA compliant for drinking water, shipped at 97 lb from the Tustin, California plant where Ronco has molded marine tanks since 1974.
The B155 follows the line's custom-finish rule: fittings installed per order, spin-welded or threaded, at the sizes and locations you mark. This is where a half hour with the drawing below pays for itself - print it, stand in the boat, and place the fill, vent, and pickup against the real geometry of hose runs, deck plates, and trim. The fitting planner on this page turns those marks into the build order.
Loaded, the tank carries about 375 lb of water, and that mass should be engineered in, not discovered later: full-bottom bearing, positive restraint, low placement. Do that and 45 gallons rides like ballast; skip it and it rides like cargo. Sister sizes are cataloged under boat tanks, the full line at the Ronco Plastics hub, and per-ZIP shipping at the freight estimator. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B155 dimensional drawing - print it to plan your install and mark exactly where you want fittings located; Ronco installs spin-weld or threaded fittings to your marked spec.
