Ronco molds several 16-gallon marine tanks, and the differences between them are the catalog's quiet genius - each is a different shape for a different hole in a different boat. The B107 is one of the heavier-built of the family: 26 lb empty, a wall with real thickness to it, intended for installs where the tank takes abuse along with the hull. If your 16-gallon bay is more forgiving, a lighter sibling exists; if the tank lives hard, this is the one.
It is molded in FDA-compliant polyethylene for potable service, and like all Ronco marine blanks it can be ordered instead with waste fittings as a holding tank - the role is set by the fittings, never pre-plumbed. Full, it carries about 133 lb of water at 8.34 lb per gallon.
Every fitting is installed per order at the Tustin, California plant, as Ronco has done since 1974: print the drawing below, mark your spin-weld or threaded fitting locations, or set them on the on-page fitting planner. Browse the whole 16-gallon family and everything around it in boat tanks, or see the complete line on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B107 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.