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As seen on TV
Works with any Ventamatic power attic ventilator
and our 850 cover gives it to you
Extension cables are made from galvanized carbon steel
Spax PowerLags 5/16 In. x 4 In. Washer Head Exterior Structure Screw (250 Ct.) ironwood As seen on TVSpax PowerLags Screws have a washer head with T Star Drive and HCR (High Corrosion Resistant) exterior coating. Provides a new level of fastening efficiency and reliability to construction. Engineered specifically for demanding wood to wood structural applications, PowerLags feature patented thread serrations that eliminate pre drilling and dramatically increase installation speed requiring up to 40% less driving torque to increase installation speed.