The E-FLEX® 4:1 Dual Wall Heat Shrink Tubing is engineered for extreme protection. Featuring a 4:1 shrink ratio, it easily fits over large connectors and irregular shapes. The heat-activated adhesive liner melts to create a permanent, moisture-proof seal with 15KV/mm dielectric strength. Rated VW-1 flame retardant, it's the ultimate choice for automotive and industrial cable insulation in harsh, corrosive environments.

E-FLEX® Dual Wall Heat Shrink Tubing provides superior 3:1 shrink ratio and co-extruded hot-melt adhesive for permanent, waterproof sealing and rugged insulation.