Pick the 99H up before you judge it. At roughly 44 pounds, this blank carries about twice the polyethylene of most 22 gallon holding tanks in Ronco's line, which tells you where it came from: an application that wanted wall thickness, whether that is rough-road service, a long unsupported span, or a builder who simply specified heavy. If your original tank felt more like equipment than Tupperware, this is likely the family it belonged to.
Capacity and duty are standard for the class: 22 gallons of gray or black water, about 183 pounds when full at 8.34 pounds per gallon, and no potable rating because waste tanks never carry one. The 22 gallon family around it offers the same volume in lighter, dimensioned shapes, from the 10H box at 34 x 22 x 12 inches to the 30H, plus the 8H with end dump and mounting rails.
Browse the full set at RV holding tanks. 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 99H dimensional drawing - print it to plan your install. The outlet is molded in. Add the Ronco 3-inch uniseal to connect it.
Freight and documents
Ships from: Tustin, CA. 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
Product video. Watch the Ronco Plastics 99H - 22 Gallon Plastic RV Holding Tank video (57 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, or call 866-418-1777. The listed price is before freight.
