Polyolefin Heat Shrink Tubing 3/4" (3:1) — 250 ft Spool (SP3X) — Blue

Blue polyolefin heat-shrink tubing, 3/4" nominal diameter with a 3:1 shrink ratio. Supplied on a 250-foot spool — model SP3X. Ideal for insulating and protecting wire joints, bundling cables, and strain relief in both field and workshop applications. The tubing reduces to roughly one-third of its original diameter when heated, providing a snug, protective cover.