HST12B Heat Shrink Tube 12mm Auto-Connect Black 10pcs

HST12B is a 10-pack of heat shrink tube made to give your installation a clean and professional look. Perfect for 20-25 mm² / 4 AWG wire, simply slide it on and heat with a heat gun or lighter to shrink down and protect your wire connection.

10pcs Heat Shrink Tube

12 mm diameter

Fits 20-25 mm² / 4 AWG wire & connectors

High Quality Polymer blend

Black color

Heat Shrink Tube

Heat shrink tubing keeps car audio wiring secure and protected. When heated, it forms a tight seal around soldered connections and bare terminals, shielding them from moisture, dust, and vibration. This added layer prevents shorts and wear in areas where can wires move or rub against other components.

In amplifier setups, speaker wire runs, or head unit connections, it reinforces joints and helps maintain solid contact over time. It also gives the install a clean, organized look, which makes future adjustments or repairs easier.