Originally made for Munster Joinery and sold in huge numbers in Ireland, a number of locks were also sold in the UK. This lock cannot be replaced by any other because of the location of the additional deadbolt.
Operation: Lift lever.
Latch reversal: Depending on date of manufacture either- Push the latch in to reveal a screw in side of case. Undo screw to remove the latch, reverse, reinsert and replace screw or Insert small flat bladed screwdriver in the small slot on side of case marked R/L. Push upwards to release latch, reverse and reinsert.