ProFIT H4X heat shrink tubing is an over-expanded, general purpose, cross-linked, polyolefin tubing with a thin wall that has a four-times expansion ratio. It is developed for a wide range of applications where larger expansions are required. H4X tubing is perfect for repairing harness — eliminating the need to remove connections or large transitions. Also, H4X is flame retardant and compatible with most adhesives to provide a complete environmental seal. This H4X heat shrink tubing (H4XR-1 1/2):1 1/2-inch diameter100 foot spool

