After looking inside the frame I found that they are from KBE.
Central extrusions had what I needed:)
https://centralextrusions.co.uk/sc/upvc-systems/kbe-mavine/
Hello all:)
I just moved into an older property and a lot of the seals/gaskets on the bead of my windows are deteriorating.
Can anyone help me identify the type of gasket or where I can source it from?
Cheers!