Further information for OBO Bettermann BSKM-DS 1025 - BSKM DS 1025 Lid Support 100x250 strip galvanized DIN EN 10147 7216474
Reinforcement with intumescent coating (one-sided) to support the cover in the joint area of the BSKM 1025.
Arrangement: in the wall opening 2 pieces on each side of the predetermined breaking point, in the case of duct connections 1 piece in the middle above the joint.