The ICON H4526 40-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• Left-side drain• One 3" hub holding tank fitting• Four 1" OD spin-weld sensor probes• Capacity: 40 Gallons• 40" x 36" x 8-1/2" Certified to IAPMO standards Left-side drain 40"" x 36"" x 8-1/2"" overall | Icon Technologies ICON H4526 Holding Tank, 40 Gal