The 47W hits the capacity most mid-size coach builders actually calculate for: 41 gallons, molded at 36 x 23 x 13 inches. Three feet long, under two wide, one foot one high - it is proportioned to slide through a compartment door and still leave working room for the pump, manifold, and sensor wiring that have to live beside any main tank.
Its Water / Waste Holding Tank series pedigree means the molding is bought two different ways. With fresh-water fittings it is the potable heart of a system, molded in FDA-compliant polyethylene. With waste fittings it is a 41 gallon gray or black tank - and running the same shell on both sides of a build keeps compartment framing identical.
Twenty-three pounds empty, about 342 lb full at 8.34 lb per gallon of water: bolt it over structure and keep it low. If 41 gallons brackets wrong, both neighbors are a click away in the RV water tanks category and RV holding tanks; marine builders will find these same hulls under boat tanks.
Molded in Tustin, California, where Ronco has rotomolded since 1974. Fittings are installed per order - spin-weld or threaded, to your marked layout: print the drawing below or drop fittings onto the click-to-place planner. OneSource Plastics is an authorized Ronco Plastics dealer.
Technical drawing: download the Ronco Plastics 47W 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.
