18 gage, 304 stainless steel end fitting with #4 finish for flexible duct. Suction end has an expanded metal screen to prevent debris from entering duct and duct connector end has roll bead.
End Fittings Adapters with Dampers
18 gage, 304 stainless steel end fitting adapter with #4 finish, expanded metal screen and damper. Roll beads on both ends.