Velux dampspærrekrave twin 2xmk06, karmafstand 18 mm Bbx mk06 0021b velux dampspærrekrave is one specially developed dampspærrekrave, there prevents to hot, moist air seedli home coming in switch with roof, past, the laws thereby form condensation. Dampspærrekraven installed quickly past, the laws easy in note on ovenlysvindueskarmen, where it creates one close sealing. Recommended to lysningspaneler, there manufactured locally. Brand: Velux
