Vita XL gearboxes are available in 35mm and 45mm backsets in single, double, and split spindle configurations but their dimensions are all the same. They measure 227mm high by the backset + 15mm. These gearboxes attach to their strips with three equidistant screws. The middle screw is 108mm from the top, which is also 108mm from the bottom screw.

These gearboxes all feature a hook that throws upwards. The hook is manufactured from Dacromet coated A3 sintered steel and is approximately 23mm high.

XL gearboxes also feature a snib on the faceplate that can be used to hold back the latch.

Operation: Lift lever or double spindle

Latch reversal: Undo the screw in the latch to remove it. Reverse and reinsert then replace the screw.

To lock the door

1. On closing the door, the latch is automatically engaged.

2. Lift the handle up to engage the additional locking points.

3. Throw the deadbolt and lock the system by turning the key (on some brands, the deadbolt will be thrown by lifting the handle).

To unlock the door

1. Unlock the system by turning the key.

2. Push the handle downwards to disengage the locking points.

3. A further quarter turn of the key will retract the latch.