Birtley Red Spring used on both retractable Birtley and Henderson garage doors. The original Henderson part number is 018759
Suits post 1992 E2 retractable doors. Please note galvanised springs are sent with a red identity as they last longer than the original painted red which are prone to rust
It is always recommended to replace springs in pairs, so that the door remains balanced.
Wire Diameter 6.52mm
Number of Coils 46
Overall Diameter 40mm
Length Excluding Hooks 300mm
