The ICON H4322 39-Gallon Holding Tank is designed for RVs, Fifth Wheels, Travel Trailers, and Campers. Increase your waste tank capacity or replace your leaky waste tank with a durable, impact-resistant ICON Tank. Features one-piece roto-molded construction.• Roto-molded, one-piece construction with spin-welded components• Certified to IAPMO standards• Recessed drain• One 3" hub fitting• Four tank well nuts• Capacity: 39 Gallons• 63" x 24" x 8" Certified to IAPMO standards Recessed drain 63"" x 24"" x 8"" | Icon Technologies ICON H4322 Holding Tank, 39 Gal