This TECHSPAN Single Wall Heat Shrink tubing offers a 2:1 shrink ratio for versatile insulation, harnessing, strain relief, and identification. Made from cross-linked polyolefin, it provides excellent electrical, chemical, and physical properties. It is flame retardant (except clear), generates low smoke, and is halogen-free. Rated for 600V, it operates continuously between -45°C and 125°C. Available in a convenient 4-foot length.The TECHSPAN HSPO-1000-2-IIL is a single-wall heat shrinkable tubing with a 2:1 shrink ratio. It has an expanded internal diameter of 1.00 inches (25.4 mm) and a recovered internal diameter of approximately 0.50 inches (12.7 mm). The tubing is red in color and comes in a 4-foot length. It features a thin wall with a thickness of 0.035 inches (0.89 mm). The operating temperature range is -45°C to 125°C, and it is rated for 600V. It meets CSA C22.2, 198.1 FILE 220127 and UL 224, File 203950 (for colors).