Explanation of bubble and flipper gasket Whilst bubble gaskets have a domed top with a profile that resembles a bubble, flipper gaskets instead feature a fin that runs the length of the gasket. Fit easily without special tools or adhesive Both work as seals when under compression between a frame and a closed window or door. GB DIY STORE uPVC Window & Door Gasket Seal Double Glazing Bubble Flipper Rubber Repair Draught Seal F140 Black (Per Metre) (BGASKET Steel Door Flipper Gasket | DG Supplyline Bubble compression seals are really easy to replace; just pull out the old, and push in the new. Quick and easy solution to draughty windows Replacing old and damaged window and door gaskets will create a tighter seal, which means your home is more comfortable and energy efficient. Stops water ingress, draughts and noise Rubber Flipper Gasket Seals for Windows and Doors Creates a seal between opening windows, doors and their frames, to stop draughts, wind noise and water ingress. Seals between an opening sash and frame. Creates a seal between opening windows, doors and their frames, to stop draughts, wind noise and water ingress. Bubble compression seals are really easy to replace; just pull out the old, and push in the new Seals between an opening sash and frame Upvc Door Seals Replacement ExtrudaSeal Bifold Door Flipper Gasket (AF032) - 5m At B&Q ExtrudaSeal F136 Flipper Gasket Draught Excluder