MK3C / C-TYPE SPRING – 30″ ONE SILVER BAND
Garador Mk3c spring & pulley assembly to suit doors with an overhead springbox (pre-1999). Includes doors by Westland Engineering and Catnic. Note: If you springbox does not have a removable cover it is not recommended to carry out repairs, and a new box unit should be purchased instead.
How to identify required spring number: Check existing springs for coloured bands of paint around the spring. If the existing is too greasy or rusty to make out any markings, measure the door opening size (width x height), make a note of your door design (this is often referenced on the label on the back of the door) and check against the spring chart found further down the page.
Silver Band generally used on 7′ 0″ x 6″ 6″ Horizon doors as below: