Trident Marine 3" Blue Polyduct Blower Hose - Sold by the Foot [481-3000-FT] Marine Hardware | Vents A proven navigation tool used

A proven navigation tool used by the US Coast Guard

and a blacked-out Diffused Lens

In-Line Check Valve 1"-1 1/2" Stepped Connection

Optics: Hybrid - Diffused

Trident Marine 3" Blue Polyduct Blower Hose - Sold by the Foot [481-3000-FT] Marine Hardware | Vents A proven navigation tool used3" Blue Polyduct Blower Hose Sold by the Foot Trident Polyduct is the most flexible, crush proof and rugged blower duct hose for heat, ventilation, and air conditioning* (HVAC). Heavy Duty polypropylene hose, reinforced with a flexible polypropylene rod helix. Features: Sold by the foot Excellent flexibility & compressibility Excellent resistance to crushing, flex fatigue, tearing, and moisture Stomp on it and it returns to shape without damage Shove