Kitemarked to BS3621. Recommended by Insurance companies and the police.
Key operation from both sides of the door.
Ideal as an upgrade lock as it will replace most other lever mortice deadlocks with the minimum of carpentry
A = 67 or 80
B = 44 or 57
C = 70
D = 144
E = 25
Available in Brass or Satin Chrome
Chubb 3U114E has now been superseded by the Union 2134E
All dimensions remain the same.