Flexible Adhesive-lined Heat Shrink Tubing 3:1

Shop our collection of flexible 3:1 adhesive-lined heat shrink tubing, engineered for sealed electrical insulation and strain relief in automotive, marine, and industrial applications. These tubes feature a high-shrink-ratio design with internal adhesive lining that melts and flows when heated—creating a watertight, vibration-resistant seal over splices, terminals, and wire connections.

Available in multiple diameters, including 1/8", 3/16", 1/4", 3/8", 1/2", 3/4", and 1" sizes. Each size is packaged in 4-packs and designed for fast, professional-grade wire protection in harsh environments.

Color options include black, clear, and red to support circuit coding and visual identification.

Ideal for technicians and fleet service professionals needing reliable, high-performance electrical insulation tubing with a clear visual seal and strong mechanical protection.

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  • 100 Piece Flexible Adhesive Glue Lined Heat Shrink Tubing Assortment

    Heat Shrink Tubing Assortment - 3:1 Adhesive Lined - 100 Piece Kit

    This 100-piece adhesive-lined heat shrink tubing kit offers excellent environmental protection and strain relief for automotive, marine, and...

    $60.99 USD
    $60.99 USD
  • 48 Piece HST200 Series Flexible Adhesive Lined Heat Shrink Tubing Assortment - Each 6" Length

    48 Piece HST200 Series Flexible Adhesive Lined Heat Shrink Tubing Assortment - Each 6" Length

    Assortment Includes: Size Color Qnty Size Color Qnty 1/8” ID Black 4 3/8” ID Black 2 1/8” ID...

    $25.49 USD
    $25.49 USD
  • Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Red 3/16" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Clear 3/16" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Black 3/16" ID - 12" Inch 4 Pack

    3/16" ID Heat Shrink Tubing - 3:1 Ratio - Dual Wall Adhesive - 12" Length - 4 or 16 Pack

    This 3/16" ID 3:1 dual wall adhesive-lined heat shrink tubing offers reliable sealing and abrasion protection for 20–14...

    $6.49 USD
    $6.49 USD
  • Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Red 1/2" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Clear 1/2" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Black 1/2" ID - 12" Inch 4 Pack

    1/2" ID Heat Shrink Tubing - 3:1 Ratio - Dual Wall Adhesive - 12" Length - 4 or 12 Pack

    This 1/2" ID 3:1 dual wall adhesive-lined heat shrink tubing is designed for 8–4 AWG wire insulation and...

    $7.99 USD
    $7.99 USD
  • Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Black 1/4" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Red 1/4" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Clear 1/4" ID - 12" Inch 4 Pack

    1/4" ID Heat Shrink Tubing - 3:1 Ratio - Dual Wall Adhesive - 12" Length - 4 or 16 Pack

    This 1/4" ID 3:1 dual wall adhesive-lined heat shrink tubing is built for high-performance sealing of 18–10 AWG...

    $6.49 USD
    $6.49 USD
  • Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Red 3/8" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Clear 3/8" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Black 3/8" ID - 12" Inch 4 Pack

    3/8" ID Heat Shrink Tubing - 3:1 Ratio - Dual Wall Adhesive - 12" Length - 4 or 12 Pack

    This 3/8" ID 3:1 dual wall adhesive-lined heat shrink tubing delivers rugged, watertight protection for 12–16 AWG wire...

    $7.99 USD
    $7.99 USD
  • Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Red 1/8" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Clear 1/8" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Black 1/8" ID - 12" Inch 4 Pack

    1/8" ID Heat Shrink Tubing - 3:1 Ratio - Dual Wall Adhesive - 12" Length - 4 or 16 Pack

    This 1/8" ID 3:1 dual wall heat shrink tubing is engineered for 30–18 AWG wire insulation and sealing...

    $6.49 USD
    $6.49 USD
  • Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Red 1" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Clear 1" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Black 1" ID - 12" Inch 4 Pack

    2-4/0 AWG Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 - 1" ID - 12" Inch - 4 or 8 Pack

    This 1" ID 3:1 dual wall adhesive-lined heat shrink tubing provides heavy-duty environmental sealing and insulation for 2–4/0...

    $13.99 USD
    $13.99 USD
  • Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Red 3/4" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Clear 3/4" ID - 12" Inch 4 Pack
    Flexible Dual Wall Adhesive-lined Heat Shrink Tubing 3:1 Black 3/4" ID - 12" Inch 4 Pack

    3/4" ID Heat Shrink Tubing - 3:1 Ratio - Dual Wall Adhesive - 12" Length - 4 or 8 Pack

    This 3/4" ID 3:1 dual wall adhesive-lined heat shrink tubing provides durable environmental sealing and high-performance insulation for...

    $10.99 USD
    $10.99 USD