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Replacement bubble gaskets for uPVC, aluminium and selected window and door systems. The rounded or hollow bubble section compresses when the sash or door closes, helping form a weather seal where the original gasket has become hard, flat, split or shrunk.
For the correct fit, compare both the bubble size and the fixing foot that locates in the frame groove. Similar-looking bubble gaskets can have different fixing profiles. If you are unsure, use our GSAMP3 Bubble Gasket Sample Pack to test the profiles before ordering a full length.