Use the links on the right to browse our product categories and schematics in PDF format. Air Control Extractor Air Control Deflector Air Control Deflector (Round Duct Take-Off) Equalizing Grid Equalizing Grid (Round Duct Take-Off) Spins-Ins (Metal Duct) Twist-Locks (Fiber Duct) Air-Tite (Take Off Seals) Dampers Damper Sleeve W/Locking Starting Collars (Taps) Round to Round Reducers Flex Duct Take-Off Square to Round Transitions Square to Square Transitions Side-Inlet Transitions Boots Baffles and Lite Shields Spin Installation Procedure/Adapter Plate