The ICON H4643 37-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: 37 Gallons
• 60″ x 24″ x 8″
Before You Order
Before ordering, compare part number 16733 with the existing rv holding tank and installation requirements.
Frequently Asked Questions
Which part number identifies this rv holding tank?
The source identifies this product with part number 16733.








