The Master Flow Air-Tite 14 in. Take-Off provides an airtight seal when connecting insulated flexible duct or round pipe to a flat surface. This take-off can be used to redirect air from any side of the plenum or to transition from a rectangular pipe run. It can be installed with sheet metal screws sold separately and is suitable for most HVAC applications.Connects insulated flexible duct or round pipe to a flat surfaceCan be used to route air from any side of the plenum or to transition from a rectangular pipe runInstall with sheet metal screws not includedFits most HVAC types for universal applicationTacky gasket helps create a secure, airtight sealSeal seams with code-approved mastic, sealant or duct tape sold separately