The B125 splits the difference in Ronco's crowded 16-gallon marine family: 32 lb empty, a wall solidly heavier than the light blanks without going to the full armored build. It is the tank for the boat that works weekends - enough thickness to shrug off a grounding's shudder and a decade of vibration, without paying for commercial-hull overbuild you will never use.
Fresh service is its potable spec: FDA-compliant polyethylene, seamless, no liner. Waste service is one fitting order away - the same blank becomes a 16-gallon holding tank, and it never ships plumbed for either role. Full, count on about 133 lb of water at 8.34 lb per gallon on top of the blank.
Fittings are installed per order in Tustin, California, where Ronco has rotomolded since 1974: print the drawing below and mark your spin-weld or threaded fitting locations, or place them on the on-page fitting planner. To weigh this blank against its lighter and heavier siblings, browse boat tanks; the complete line is on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B125 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.
