Multi-direction diffusers made of white painted steel. 120 x 120 mm (Multi 12) or 200 x 200 mm (Multi 20) dimensions. Option of manually adjusting the airflow upward or downward. The Multi 12 vent is available for pellet-fuelled products (stoves and fireplaces) and wood-fuelled products (stoves and fireplaces with Comfort Air® Slim kits). The Multi 20 vent is available for pellet-fuelled fireplaces with Comfort Air® Basic kits and wood-fuelled products (stoves and fireplaces with Comfort Air® Basic kits).