The B274 is nearly a perfect cube: 15.62 x 15.62 x 15.12 inches holding 14 gallons. A cube is the most volume the least surface can enclose, which is why this molding carries more water per inch of locker than any flat tank of the same capacity - the efficient choice when your available space is deep rather than wide.
It is a marine B-series dual-role blank: fresh-fitted, the food-grade polyethylene serves potable supply; waste-fitted, it is a compact holding tank for a head or galley. All fittings are installed per order - print the drawing below, mark the locations on whichever faces your plumbing can reach, and the on-page fitting planner specs the spin-weld or threaded hardware Ronco adds before shipping.
Seventeen pounds empty, about 117 lb full, and a cube's concentrated load belongs on a solid base with a strap over the top. Rotomolded in Tustin, California since 1974. If your space is shallow instead of deep, the flat 14s are in our boat tank category; the full line is on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B274 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.
