Henderson Ultra 225 Mk2 garage door spring – Suits Ultra 210 & 225 doors, double Doric all sizes including DRP Double Doric, Double Regent 1466/1470, Sovereign 1470, Single Skin GRP 1466/1470, Churchill 7066/7070. Henderson Ultra springs are identified by their adjusting bolts which screw into a bracket in the end of the spring itself.
Wire Diameter 8.6mm
Number of Coils 60
Overall Diameter 63mm
Length Excluding Hooks 516mm
When replacing garage springs, it is recommended to replace both springs at the same time, to ensure the spring tension and door remain balanced.
