Ronco Plastics 27H - 29 Gallon Plastic RV Holding Tank with Rails

Molded rails are the 27H's argument. These integral flanges along the tank body take mounting straps or bolt-on brackets directly, letting the tank hang in the coach on its own structure, the way many OEMs designed their waste bays in the first place. If your original 29 gallon tank had flanged edges, replacing it with a plain-sided tank means fabricating a cradle; replacing it with this molding means reusing the mounting you already have.

Capacity is 29 gallons of gray or black water, no potable service, in a blank of about 23 pounds, light for its volume. Full, it loads the rails with roughly 242 pounds at 8.34 pounds per gallon, which is why molded-in mounting beats improvised mounting: the load path was engineered, not guessed.

Neighboring sizes if the fit is off: the 23H at 28 gallons below, and the 30 gallon pair above, the 22H at 39 x 25 x 12 inches and the 39H at 46 x 22 x 9. Ronco Plastics rotomolds them all in Tustin, California, as it has since 1974, and installs spin-weld or threaded fittings per order: print the drawing below, mark inlet, outlet, and vent relative to the rails, and the tank is built to your sheet. Browse RV holding tanks for the rest. OneSource Plastics is an authorized Ronco Plastics dealer.

Technical drawing: download the Ronco Plastics 27H 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.