Pattern Green Spring (Dolphin) spring to suit Henderson
A pattern spring to suit Henderson double Dolphin doors 3810mm (12` 6") to 4420mm (14` 6") wide and to suit pre Premiere Doric tracked doors 2438mm (8`) to 2743mm (9`) wide. These springs are easily identified either by size or their colour.
The spring has 99 coils with a length over coils of 533mm (21"). and an outside diameter of 38mm (1 1/2").