Ninety pounds of molding for 27 gallons of water - the B342 is built like a piece of the boat. This is Ronco's heavy-service approach applied to a mid-size blank: wall section thick enough to take point loads, abrasion, and years of slosh cycling without fatigue. It is the tank you specify when the installation is unforgiving - hard against a frame, under a sole that gets walked on, in a workboat that does not get babied.
It ships without fittings so the ports serve your plumbing, not a factory average. The routine is simple and has been running in Tustin, California since 1974: print the drawing below, mark every port location using the fitting planner on this page, and Ronco spin-welds or thread-installs each fitting to those marks before the tank leaves. For fresh water the polyethylene is FDA-compliant and safe for potable use; and like every dual-role B-series blank, the same shell ordered with waste fittings becomes a heavy-duty gray or black holding tank.
Full, it adds about 225 lb of water to its own 90, so build the bearers for the total, not the tank. If your compartment is kinder and your budget tighter, lighter blanks in the same capacity band are laid out in the boat tank category; shipping on a 90 lb blank is worth a check on the freight cost estimator; and the maker's full range is on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B342 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.
