US Patent #10,161,135,B2
Applications: Turbine Vents Roof Exhaust Fans ユ Metal Roof Vents ユ Roof Caps ユ Goose Neck Air Vent
Specifically Designed for Roof Vents with a Pre-Installed Metal Base
Square or Rectangle: Closed Top to 12ï¾” (0 to 355mm)
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