The B234 keeps 20 gallons under nine inches tall. Its 33.25 x 17 x 8.75 inch envelope is drawn for the underfloor middle ground - shallower than a locker, deeper than a chase - which happens to be where a huge share of boats and coaches have their only unclaimed volume. If your available space is wide, longish, and short, this is the proportion that was waiting for it.
It is a dual-role molding for marine and RV systems: fresh water or waste holding, fixed by the fittings you order on an otherwise blank shell that is never plumbed for you. Fresh service means FDA-compliant, potable-rated polyethylene; waste service means the same seamless rotomolded wall on gray or black duty. In a tank this shallow, put real thought into the low corner as installed - print the drawing below, mark the fill, vent, and pickup (or inlet and dump), or lay them out on the on-page fitting planner, and Ronco spin-welds or thread-installs each fitting to your marks.
At 24 lb it is a one-person install, and full it spreads about 167 lb (8.34 lb per gallon) across its 33.25 x 17 inch footprint - an easy ask of any sound floor when the tank bears continuously. Rotomolded in Tustin, California by the shop that has been fitting tanks to leftover spaces since 1974.
Similar low-profile moldings are in the boat tank category and RV water tanks; the whole catalog is on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B234 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.
