4-9 Expanding Foam Tape Seals (600pa) Gaps between 4mm and 9mm | Affixit.co.uk
TP600 Compriband 600 | illbruck UK
Compriband Joint Sealing Tape, Compressive Band, 20/8 Charcoal Grey, Band Width 20 mm, Expands from 8 to 28 mm, – 4.3 Metre Roll : Amazon.co.uk: DIY & Tools