The 35H is a pancake: 9 gallons of holding capacity rolled out to 29.75 x 22.5 inches but standing just 8 inches tall. Ronco Plastics draws it this way for underfloor waste service where the frame gives you area but almost no depth - the classic low-clearance gray-tank problem.
It is waste-only equipment, gray or black water, with no potable rating; the fresh side of your system shops elsewhere. A 16 lb molding carrying about 75 lb when full, the one-piece rotomolded shell takes road shock without seams to fail, and the wide flat base spreads the load across the mounting surface.
Close alternatives: the 9-gallon 36H at 30 x 12.5 x 7.25 inches is narrower and lower still, and the 10-gallon 59H at 28 x 14.5 x 11 inches adds a gallon in a deeper box. Everything else is under 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 35H 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 35H - 9 Gallon Plastic RV Holding Tank (29.75" x 22.5" x 8.0") 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.
