Liniar Bifold MBF194 Seal QL9934 Black 6 Mtr. Should you need to replace the bifold door hinges with the new upgraded heavy duty ones then it is usual to remove the old rigid interlock gasket/s found fitted to the door leaf/s and replace them with this qlon MBF194 specific gasket, as the new upgraded hinges are thicker and therefore require this wider heavy duty gasket to ensure a weather tight seal.
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