Simplex 3010-19 Drive Assembly 31/32 in. Backset/Handing Right Hand or Right Hand Reverse
Simplex 3020-19 Drive Assembly 31/32 in. Backset/Handing Left Hand or Left Hand Reverse
Simplex 3030-19 Drive Assembly 1-1/8 in. Backset/Handing Right Hand or Right Hand Reverse
Simplex 3040-19 Drive Assembly 1-1/8 in. Backset/Handing Left Hand or Left Hand Reverse