This 0.30″ ID 3:1 heavy wall adhesive-lined heat shrink tubing provides robust insulation and environmental sealing for critical electrical connections. Designed for harsh and wet conditions, it delivers a tight, moisture-resistant seal around 148 AWG wires, making it ideal for battery terminals, underwater use, and direct burial applications.

Specifications & Features

• Shrink Ratio: 3:1
• Pre-shrink Inner Diameter: 0.30″
• Length: 6 inches
• Wire Compatibility: 148 AWG
• Wall Type: Heavy wall dual-layer with adhesive lining
• Adhesive lining melts and flows to create a watertight barrier
• Provides superior insulation and strain relief in demanding environments
• Meets UL486D for electrical connections
• Available Colors: Black, Red
• Ideal for battery splices, marine cable repair, and underground installations