FLK and FLK-N plenum boxes are recommended for E5, DR and AG air grilles for extract air. FLK is equipped with insulation, an air deflector, commissioning damper with measuring tubes, and air-tight rubber seiling on the connection.
As standard versions the boxes are available either with side (S), back (B) or top (O) connection.
FLK-N is without noise absorbing insulation.
Galvanized stainless steel, with glass wool insulation. Plastic pipe and probe for commissioning. (DLK-N is manufactured without insulation
Please see the downloadable product catalog.