Profile cylinder for smart lock - 57mm (2-1/4") thick doors. 6-U7350-60-0-01 = (Discontinued) Profile cylinder for smart lock - 44mm (1-3/4") thick doors. 6-U7350-00-0-01 = (Discontinued) Adjustable profile cylinder for smart lock - 44-79mm (1-3/4" to 3-1/8") thick doors.
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