The anti-odour metal sleeve with internal structure is a metal connector sleeve for Ona Block to be placed in the air duct just before the exit to the street. Also compatible with Zerum Block.

By placing the anti-odour metal sleeve with the ONA block at the air outlet, we will achieve a cleaner extraction, with much more discreet and softer odours.

*For use with Ona Block: Refc#560038 – Refc#560099 – Refc#560132 – Refc#560027 – Ref#560028