Ronco Plastics 14H - 26 Gallon Plastic RV Holding Tank with End Dump and Rails

Dump geometry is the quiet reason waste tank replacements go sideways, and it is the reason the 14H exists as a distinct 26 gallon molding. Its outlet is configured for an end dump, valve at the end of the tank where rear-plumbed coaches need it, and its sides carry molded rails, integral flanges that accept straps or brackets so the tank supports itself against its mounting instead of depending on a fabricated cradle. If the tank you removed had flanged edges and an end-mounted valve, match those features, not just the gallons.

Capacity is 26 gallons of gray or black water, never potable, in a blank of about 26 pounds. Loaded weight is roughly 217 pounds at 8.34 pounds per gallon. The plain-bodied alternatives in the same size are the 54H at 28 x 22 x 11.5 inches and the square 62H at 24.5 x 24.5 x 11.5; one size down, the 45H covers long shallow bays at 74 x 15 x 8.25.

Ronco rotomolds these in Tustin, California, as it has since 1974, and installs spin-weld or threaded fittings to your order. Print the drawing lower on the page, mark your inlet and vent relative to the rails and dump end, and that becomes the spec your tank is built to. Full family: RV holding tanks. OneSource Plastics is an authorized Ronco Plastics dealer.

Technical drawing: download the Ronco Plastics 14H 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.