The ICON H4173 10-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• Center end drain• Replaces 0285335• Two 1-1/2" flush threaded fittings• Four Tank Level Sensors• Capacity: 10 Gallons• 35-1/2" x 15-3/4" x 6" Certified to IAPMO standards Center end drain 35-1/2"" x 15-3/4"" x 6"" overall | Icon Technologies ICON H4173 Holding Tank, 10 Gal