DESTU Seal No3 DS3

are designed specifically for the heat Trace range of heating cables and are used as part of the DESTU termination system.
There are 5 seals for the DESTU each seal is specific to a range of cables.
See below:

Heating Cables applicable to DS3

Self-Regulating:

Constant Wattage:
Microtracer EMTS-CS and EMTS-CF
Minitracer MTF-CF
PowerHeat PHT-NF