VELCO SOUND TRAP
SILENCER FOR THE VENTILATION WINDOW
Includes: Sound trap Additional silencer
Attachment screws 4 pcs
1. Pull off the cover of the separate additional silencer.
2. Attach the additional silencer to the bottom of the supply air vent.
3. Center the sound trap over the vent so that the vent is at the top part of the trap.
4. Attach the sound trap with four screws at the marked locations. 4x