Twenty gallons of fresh water buys you distance: more days on the hook, more miles between marina stops, one more rinse-down before anyone has to say the word "ration." The B193 is Ronco's 20 gallon marine fresh water tank in this particular footprint - one of several 20 gallon shapes the shop molds, because in a hull the shape decides whether the capacity fits at all. Check the drawing below against your compartment before anything else.
Construction is rotomolded FDA-compliant polyethylene, a seamless one-piece shell rated for potable service. It ships as a blank at 94 lb with no fittings installed, and that is the point: Ronco spin-welds or thread-installs your fill, vent, and pickup to the exact locations you mark. Print the drawing and mark it up, or use the on-page fitting planner to place them by click - the tank arrives matched to your plumbing runs instead of forcing your plumbing to chase the tank.
Loaded, expect about 167 lb of water on top of the tank itself, since water runs 8.34 lb per gallon. Mount it low, bear it on a flat panel, and strap to structure. This is the same discipline Ronco has applied from its Tustin, California shop since 1974, which is why these moldings turn up in refits decades after the boats first launched.
Every hull cavity is different - browse other 20 gallon geometries in the boat tank category or scan the complete range on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B193 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.
