The BOAT59W is the deep-format 60-gallon tank in Ronco's heavy-duty marine line: 40 x 25 x 15.5 inches, a substantial block for boats with a proper tank bay or a deep under-berth cavity. Alongside its wide flat sibling, it gives you two ways to carry the series' largest rectangular capacity - this is the one for spaces with depth to spare.
The H.D. wall means marine-duty thickness, molded in FDA-compliant polyethylene rated for drinking water at Ronco's Tustin, California plant - rotomolding there since 1974. Fittings are installed per order at the exact points you mark, spin-welded or threaded: print the drawing below, lay out fill, vent, pickup, and gauge sender with the on-page fitting planner, and the tank arrives welded to your layout.
Sixty gallons weighs about 500 lb full, so treat the installation as structure: framed bearing under the bottom, hold-downs sized for a seaway. Compare the wide-format 60 and the rest of the big tanks in boat tanks, price shipment on the freight cost estimator, or browse the maker's line at the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.