Rectangular air duct connection components made by galvanized steel.
- SB-20/SB-30: Air duct connection profile in nominal sizes 20 and 30.
- S-20/S-30: Corners for installation in air duct connection profiles in nominal sizes 20 and 30.
- Α: G shaped clamp with screw for holding in a pair of air duct connection profiles.
- SA: C shaped “drawer” for holding in a pair of air duct connection profiles.