Gardner Bender Heat Shrink Butt Splice Kits

Create A Waterproof Connection for your Copper Cables

We Guarantee to Have the Best Price

What's special about these heat shrinkable connectors?

  • Secure set screw splice allows for a solid splice with maximum conductivity and mechanical strain relief
  • Heat shrink cover creates a waterproof, dustproof seal to protect and insulate wiring
  • Ideal for use as direct burial or for use in conduit or other tubing
  • Click for More Features

Gardner Bender heat shrink butt splices are the perfect solution for insulating and protecting your copper wire splices. The secure waterproof, dustproof seal can be used for direct burial as well as above ground applications.


GB-HSB-28 1-Screw Splice Connector
[1] 1-1/2" dia, 4" Heavy Wall Polyolefin Heat Shrink Tubing
#8 to #2 Copper Wire 0.14 lb
GB-HST-WP 1-Screw Splice Connector
[1] 3/4" dia, 4" Heavy Wall Polyolefin Heat Shrink Tubing
#14 to #8 Copper Wire 0.08 lb
GB-HST-1300 4-Screw Splice Connectors
[1] 1-1/2" dia, 8" Heavy Wall Polyolefin Heat Shrink Tubing
#14 to #8 AWG UF Copper Wire 0.26 lb
  • Easy to use design makes installation quick and easy
  • Rated for use up to 600V max
  • Seals permanently using a heat gun or torch
  • Heat shrink is lined with an aggressive adhesive that adheres to most plastics, rubber, neoprene, metals, and polyethylene
  • Tubing provides high impact abrasion and corrosion resistant protection
  • Eliminates the need to use messy epoxies or electrical tape
  • HST-1300 is ideally suited for UF cables:
    • Minimum conductor size 14/2 with ground
    • Maximum conductor size 8/3 with ground


Continuous Operating Temperature -67° F to 257° F [-55° C to 125° C]
Shrink Temperature 250° F [120° C]
Shrink Ratio 2.5 : 1
Maximum Voltage Rating up to 600V






Perma-SealPerma-Seal™ Step-Down Butt Splice Connectors
Able to shrink 40% faster than standard heat shrink, these butt splices allow you to join 2 different gauge wires into one, and are able to stand up to harsh conditions.
Krimpa SealKrimpa-Seal Heat Shrink Butt Splices
Translucent polyolefin material lets you visually check the quality of your connections before permanently shrinking on these adhesive-lined connectors.
end caps of heat shrinkHeat Shrink End Caps
These adhesive-lined end caps seal off wire ends and splice terminations to insulate and protect against moisture, chemicals, abrasion and corrosion.
heat gunsHeat Shrink Tools/ Heat Guns
We offer a range of options to shrink your tubing, from small torches to ovens.

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