| The Lift-Master 4410EGB. A good example of this unit being trimmed in overall length so as to still allow access to the loft hatch. |  |
| The carriage assembly on the rail with linkages to the
door.
A secure fixing to the door lintel is vitally important. Pulling the red cord allows manual lifting of the door. |
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| The Lift-Master 4410EGB. A standard installation complete with additional fixing half way along the rail. |  |