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About the Velux ZCT 100 Skylight 3 Ft. Extension for Velux Control Rods for Velux Manual Blinds & Venting Skylights
The Velux ZCT 100 3 ft. Extension for Control Rods for Manual Blinds and Venting Skylights. ZCT 100 is an extension that increases the reach of Velux control rods. The Velux ZCT 100 3 is perfect for out-of-reach applications. This extension allows you to operate skylights in rooms with extra high ceilings (cathedral ceilings, that can't be reached with a standard 6 ft. to 10 ft. control rod).