You can replace your old cylinder with ours, so that you can use 1 key to open 2 doors. Suitable Door Thickness:from 1-3/8''to 2''. 2 Sizes of Backset Latch: 2-3/8''and 2-3/4''. Both left and right handed doors.
This door lock is easy to install with a screwdriver. All door lock hardwares are included.Over 200,000 cycles usage(average over 25years). Good choice for home decor.