• Superior nylon plastic materials so that can bear water, Color: Black
• Base Diameter: 25.8 mm / 1.02 inch, Height: 15.3 mm / 0.6 inch
• GE ePTFE membrane Protective Vents for Surfboards and Watercraft. This membrane is waterproof this allows the vent to works by allowing air and other gases to pass through the membrane freely but stops liquids from entering the enclosure. Surfing board vent design has the membrane bonded around the circumference using a very specialized process.
• This vent "breathes" constantly alleviating the need to open and close it. Or in worse case, forgetting to close it! SUP's over 10' or hollow boards should use two (mid-board & near tail). Originally, this vent for sealed military electronics, so it meets very stringent spec's for a saltwater environment. This vent isn't an immunity to heat problem with EPS, and customers should understand that boards still cannot be left in the sun; especially upside down on roof racks.
• Package Content: 2 x Air Vent