The Ronco Plastics B468 solves the long-narrow-void problem: 22 gallons of capacity in a slender molding that slips into keel-line chases and side lockers where a boxier tank strands half the space. At 27 lb out of the box, one person handles the whole installation.
Role is decided by fittings, not by the shell. This is Ronco's dual-role B-series, so a fresh water order makes it a potable tank in food-contact polyethylene, and a waste order makes it a gray or black holding tank, same seamless body either way.
Loaded, plan on about 183 lb of water at 8.34 lb per gallon.
Made in Tustin, California by Ronco Plastics, founded 1974. If the job is strictly waste, look at the dedicated 22 gallon holding tank; the broader boat tank collection has other slim footprints, and the freight cost estimator prices delivery. One Source Plastics is an authorized Ronco Plastics dealer.
Fittings
This tank has a molded shape (see the drawing), so it is sold as a blank tank with no fittings installed. Add the Ronco 3-inch uniseal (F3UNISEAL), a loose pipe-to-tank seal you install yourself, if you need a sealed pipe connection.
Technical drawing: download the Ronco Plastics B468 dimensional drawing - print it to plan your install. Sold blank, with no fittings installed.
