This Shields Marine Boat Blower Vent Exhaust is a 4" black hose with a 10' length, suitable for inboard/IO use. It is manufactured in the United States and comes with a manufacturer part number of 16-402-4003. The vent hose diameter is 4 inches and the vent hose length is 10 feet.

This product is great for those looking to upgrade their boat's exhaust system. It is compatible with a variety of boats and is designed to provide a reliable and efficient ventilation solution. The product does not come with a warranty, but it is built to last and is made by a reputable brand.