Heat Shrink Butt Splices and End Caps

Krimpa-Seal Heat Shrink Butt Splices
From $14.31
Translucent polyolefin material lets you visually check the quality of your connections before permanently shrinking on these adhesive-lined connectors.

Elektralink™ Sealed Solder Butt Splices
From $20.27
These connectors do double duty by splicing wires with just the right amount of solder, then covering the splice with a secure and waterproof heat shrink seal.

Heat Shrink End Caps
From $0.70
These adhesive-lined end caps seal off wire ends and splice terminations to insulate and protect against moisture, chemicals, abrasion and corrosion.

Heat Shrink Breakout Boots
From $4.37
Designed to form watertight seals around single-to-multiple cable transition points, these breakout boots are made of durable polyolefin and lined with a heat-activated adhesive.

HydraLink Sealed Multiple Wire Closed End and In-Line Butt Connectors
From $20.01
Lined with an active adhesive that works to join up to 4 wires, these clear connectors allow you to inspect your work before permanently shrinking them on.

Gardner Bender Heat Shrink Butt Splice Kits
From $6.93
Ideal for above ground and direct burial applications, these copper cable butt splices are overlaid with adhesive heat shrink tubing for a permanent waterproof, dustproof seal.

Multilink™ Crimp and Solder Sealed Butt Splices & Ring Terminal Kits
From $35.79
Using a unique 3-step process, these butt splices and terminals allow you to crimp, solder and heat-shrink with just one product, for durable and secure connections.

Panduit Wire Maintenance Kits
From $438.12/ 50 pack
This comprehensive kit of butt splices, terminals, cramp tools, cable ties, installation tools and ID equipment has everything you need for electrical installations.

Step Down Butt Splices
From $29.43/ 50 pack
Reliably connect 2 different wire gauges in one simple connector with our step-down butt splices, which are equipped with wire stops to prevent over-insertion.

Perma-Seal™ Step-Down Butt Splice Connectors
From $78.41
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.

OptiSeal Heat Shrink Butt Splices
From $21.44
Designed to allow a full visual inspection of butt splices prior to crimping, these crystal-clear heat shrink splices are lined with adhesive for a watertight seal, and are color-coded to indicate wire gauge size.

Heat Shrink End Caps with Valves
From $4.49
Featuring a unique design that's equipped with pressure-releasing stem valves, these adhesive-lined heat shrink end caps are perfect for automotive work, sealing hose or pipe ends, and general stem valve repairs or replacement.