20mm 3:1 heat shrink tube with adhesive with an initial diameter of 20mm is a professional protection for large cables and connectors used in car audio and battery installations.
After shrinking, its diameter is reduced to approximately 6.6 mm, which allows for a solid and durable fit even to irregular shapes.
The adhesive layer inside the tube creates a strong and tight bond that protects the connections against moisture, oil, vibration and mechanical damage.
This solution ensures not only safety, but also a professional appearance of the entire installation.

20 mm heat shrink tube is used for large ring connectors, larger diameter power cables and power distributors.
It is the ideal choice for working with thick cables used in high-power car audio systems, as well as in battery and industrial installations.
Thanks to its high shrinkage coefficient, it can be used for both round and more irregular elements.

• Initial diameter 20 mm – ideal for thick cables
• Shrinkage ratio 3:1 – flexibility and wide range of applications
• Internal adhesive – ensures that the tube will always stay in place
• Resistance to moisture, oil and damage
• Professional look and easy installation