Used to transition from a rectangular duct or a plenum to round pipe or insulated flexible duct. Routes air from any side of the plenum or a rectangular duct run. Peel-and-stick self-adhesive gasket helps to create a secure, airtight seal. Crimped at one end for easy attachment to pipe or flexible duct. Constructed from 26-gauge galvanized steel for durability and rust resistance. Installs with sheet metal screws (not included). Collar has 4 pre-punched screw holes to screw to duct face.

Used to transition from a rectangular duct or a plenum to round pipe or insulated flexible duct. Routes air from any side of the plenum or a rectangular duct run. Peel-and-stick self-adhesive gasket helps to create a secure, airtight seal. Crimped at one end for easy attachment to pipe or flexible duct. Constructed from 26-gauge galvanized steel for durability and rust resistance. Installs with sheet metal screws (not included). Collar has 4 pre-punched screw holes to screw to duct face.