LOWENERGIEStormguard Elite Joinery Seal Timber Wooden Window Doors Frame Gasket Draught Proofing Rubber 6 Metre (Black)

this is good for sealing round windows

Does the job. Good value.

Glad I measured before I ordered to make sure I had the right seal. Worked well

Glad I discovered these rubber strips can be bought for my windows. The old squashed rubber seals were letting in a draught on some of my windows. Not quite as tight a fit in the slot as the original ones but a dab of superglue in a few places is keeping them in place.

Product so rolled up needed heat from hairdryer to use it. It didn’t fit tightly in slot so had to silicone it in place. Saying that it works well.