A2 brass external compression glands
Industrial stuffing glands with a moisture proof seal, suitable for internal or external use with unarmoured cables.
BT coaxial (British Telecom coax)
Designed to meet British Telecom standards, black PVC = internal/external, white PVC = internal only, LSZH = increased fire safety. BT2001, BT2002, BT2003, BT3002, BT5000.