ERA Genuine Gearbox Hookbolt Version to suit Warmcore and Liniar Bi-Fold Doors.
Operation: Lift lever or split spindle
Latch reversal: Undo the screws in the latch to remove. Reverse and reinsert then replace screws.
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Nightlatch split spindle reversal: Remove latch to reveal a small screw. Use a small bladed screw driver to turn the screw 180 degrees then return latch to correct position.