Sierra 116-400-4003-1 Vinyl Vent Blower Hose 4in x 10ft Black Marine Bilge

The Sierra 116-400-4003-1 is a 4-inch diameter, 10-foot black vinyl vent hose designed for marine bilge ventilation and blower duct applications. Built on the trusted Shields 402 Vinylvent platform, this hose delivers reliable, long-lasting performance in demanding marine environments.

Key Features:

• PVC construction supported by an anodized wire helix for flexible yet crush-resistant performance
• Corrosion-resistant materials withstand the harsh saltwater and freshwater marine environment
• Flame-resistant — will not support flame, meeting critical marine safety standards
• UV and ozone resistant for extended outdoor and onboard service life
• Primary application: venting of bilge fumes and engine compartment gases
• Inside Diameter (I.D.): 4 inches (101.6 mm)
• Outside Diameter (O.D.): 4-1/8 inches (104.8 mm)
• Length: 10 feet
• Color: Black

This vent hose is compatible with standard 4-inch marine blowers and ventilation fittings, making it a straightforward replacement or new-installation solution for engine compartment, galley, or head ventilation systems on powerboats and sailboats.