This product serves as a wall penetration in basement shafts for the connection of outdoor air or exhaust air ducts from heat pumps or ventilation units. It can be used for wall penetrations with any wall structure. It features a fine mesh grid designed to prevent the entry of animals.

The external wall penetration is internally insulated, equipped with an end cap and an oval connection for DN 560. The length of the wall penetration is adjustable to wall thickness using telescopic technology. It includes a weather protection grid for installation in light wells.