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. Browse RV holding tanks for the rest. One Source Plastics is an authorized Ronco Plastics dealer.
Fittings
This holding tank ships with its outlet molded in, ready to plumb. Add the Ronco 3-inch uniseal (F3UNISEAL), a loose pipe-to-tank seal you press into the outlet yourself, with no threads or nuts.
Technical drawing: download the Ronco Plastics 27H dimensional drawing - print it to plan your install. The outlet is molded in. Add the Ronco 3-inch uniseal to connect it.
Freight
LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
See this tank
Interactive 3D model with live fill. This tank has an interactive 3D model built to its manufacturer dimensions. Rotate it, and set a fill level to see how much liquid it holds at any height. Open the 3D view on the product photo above. Download the 3D model (GLB).
Product video. Watch the Ronco Plastics 27H - 29 Gallon Plastic RV Holding Tank with Rails video (62 seconds) with dimensions, fittings and shipping notes.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.
