Telephone Line Jack Units
BT Line Jack Units.
2/1A, 2/2A & 2/3A are single outlet units which are surface mounted complete with back box
3/1A, 3/2A & 3/3A are single outlet units which are flush mounted for use with standard LB3 back boxes
4/1A, 4/2A & 4/3A are double outlet units which are flush mounted for use with standard LB3 back boxes