Fullex XL genuine replacement gearbox with a single spindle and available with a 35mm backset.Operation: Lift LeverLatch reversal: Undo the screw in the latch to remove. Reverse, reinsert and replace the screw.FULLEX XL Single Spindle£62.40PriceQuantity*Add to CartTech Specs Case Height: 230mm Case Width: Backset + 15mm Centres: 92mm Backset: 35mm or 45mm Spindle: Single 8mm