4 Ft Black Heat Shrink 1/2' 3:1 Ratio

The 4 Ft Black Heat Shrink 1/2" 3:1 Ratio is a professional-grade heat-shrinkable tubing designed to provide insulation, environmental protection, and strain relief for cable connections and splices in telecom installations.

This tubing features a 3:1 shrink ratio, meaning it shrinks to one-third of its original diameter when heated—providing excellent conformability around irregular shapes and creating tight, secure seals on connectors and cable transitions. The black color offers UV resistance for outdoor applications while providing a professional, finished appearance on completed installations.

The material maintains flexibility after shrinking and resists moisture, abrasion, and temperature extremes, making it ideal for protecting connections exposed to harsh environmental conditions on tower sites and outdoor equipment installations.

• Cable splice insulation and protection
• Connector weatherproofing and sealing
• Strain relief at cable terminations
• Wire bundling and organization
• Equipment connection environmental protection

• 1 Piece - 4 Feet Length

• 1/2" Diameter (Before Shrinking)
• 3:1 Shrink Ratio
• Black Color
• UV Resistant
• Moisture and Abrasion Resistant
• Flexible After Shrinking