Flat Roof Mounting Base, 12" Galvanized, EMPIRE VENTILATION, Mfr# FB12G

Attic & Roof Ventilator Base, Compatible Grainger Part Number 2C531, Compatible Manufacturer Model Number TV12G, Finish Galvanized, Flashing Size 20 in x 20 in, For Fan Type Wind-Driven Turbines, Material Galvanized Steel, Throat Diameter 12 in, Base Type Flat, Base Width 22 in, For Use With Flat Roof Mounting Base, 12 In. Galvanized, Outlet Diameter 12 in, Overall Height 10 in