Plastic 15mm diameter tubes, white, grey, brown or black
D2, D4 and D6 are tensioned on site, for sashes up to 18.5kg
F balances pre-tensioned, F0 up to 45lb (20.5kg); F1 up to 60lb (27.5kg) On site adjustment facility - tension can be added but cannot be removed, with a flat-head screwdriver.
Standard and dedicated attachments available
Visit the Cavendish Hardware website for more information on D and F Balances