The B112 is 30 gallons of marine tankage built like a fitting on a commercial hull: 91 lb empty, a wall you can rap with a knuckle and hear the thickness. Ronco molds light tanks and heavy tanks, and this is emphatically the second kind - for boats that run every day, tankage bays that flex, and owners who buy once.
Thirty gallons of fresh water is about 250 lb at 8.34 lb per gallon, real cruising supply for a mid-size boat. The polyethylene is FDA-compliant for potable systems, and the identical blank can be ordered as a gray or black holding tank instead - the fittings you specify set the role, and it never ships pre-plumbed for either.
Fittings are installed per order in Tustin, California, where Ronco has rotomolded since 1974: print the drawing below, mark your spin-weld or threaded locations, or click them onto the on-page fitting planner. A blank this heavy is worth a shipping check early - run your ZIP through the freight cost estimator. The rest of the marine range lives in boat tanks and on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B112 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.
