Same 35 gallons, different real estate: the BOAT2W spreads its capacity across 37.5 x 19 x 12 inches, longer and 3 inches lower than its blockier stablemate. Twelve inches of height is what lets it slide under berths and cockpit soles that a taller tank cannot enter, and in tank fitting the height limit is usually the one that decides.
The 69 lb blank weight tells you this is the densest shell in the heavy-duty fresh water family at this size - serious wall for hulls that pound. Contents at full add about 292 lb, so give it a flat, framed bed that supports the whole bottom. The material is FDA-compliant potable polyethylene; this molding is fresh water only.
Fittings go on per order at the Tustin, California plant, spin-welded or threaded exactly where you mark them, Ronco practice since 1974. Low tanks put a premium on pickup placement, so print the drawing below, plan the drain end carefully, and commit your layout in the on-page fitting planner.
The lighter-built parallel is the 35-gallon RV2W; browse the rest under boat tanks or the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.