Seventy gallons is passagemaker capacity. It is the tank you spec when the float plan says days offshore, when the watermaker is a backup rather than a lifeline, when a crew of four expects to wash salt off every evening. The B208 is one of the largest fresh water moldings in Ronco's marine catalog, and it treats that responsibility seriously: one-piece rotomolded FDA-compliant polyethylene, potable-rated, with no seams to work loose a hundred miles from the dock.
A tank this size is a structural commitment. Full, it holds about 584 lb of water at 8.34 lb per gallon - call it the crew's whole body weight again, parked in one locker - so it belongs low in the boat on full-length bearers, strapped into real structure. The bare tank ships at 145 lb; plan the path from dock to compartment before it arrives, and run the freight cost estimator to price the shipment to your ZIP.
Fittings are installed per order. On a 70 gallon tank that typically means more than the basic three - a fill, a vent, a pressure-system pickup, perhaps a sender and a secondary draw - and each goes exactly where you mark it. Print the drawing below and lay out the penetrations, or use the on-page fitting planner; the Tustin, California shop has spin-welded and thread-installed to customers' marks since 1974.
The rest of the big moldings are in the boat tank category, and the complete catalog is on the Ronco Plastics hub. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics B208 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.
