Air Vent Black Aluminum Roof Vent Grinder Wheels & Accessories UPC: 024034664069

UPC: 024034664069

Safety Rating: Category III 1000V and Category IV 600V

which extends the useful life of the sanding sheets

Model Number: 1927KW-M

Model Number: 11-983A

Air Vent Black Aluminum Roof Vent Grinder Wheels & Accessories UPC: 024034664069A non electric alternative to ventilation, these vents use the natural force of wind and air pressure to spin and vent out stale attic air. They do it with a series of specially shaped vanes that catch the wind and provide rotary motion. This pulls hot, humid air from the attic. Turbine vents provide a low cost ventilation alternative in areas where wind speeds of at least 5 mph are typical. Provide year round ventilation Patented delrin bearings