TECHSPAN's Single Wall Heat Shrink tubing offers a versatile solution for insulation, harnessing, strain relief, and identification. Made from a cross-linked polyolefin, this general-purpose tubing provides excellent electrical, chemical, and physical properties. It features a 2:1 shrink ratio, is flame retardant (except clear), generates low smoke, and is halogen-free. Rated for 600V, it operates continuously from -45°C to 125°C. Available in convenient 4-foot lengths, this yellow tubing meets UL and CSA requirements.This TECHSPAN Single Wall Heat Shrink tubing, model HSPO-500-4-IIL, is a general-purpose, thin-wall polyolefin tubing with a 2:1 shrink ratio. It has an expanded internal diameter of 0.50 inches (12.7 mm) and a recovered internal diameter of approximately 0.25 inches (6.35 mm). The wall thickness is 0.025 inches (0.64 mm). It is rated for 600V and has a continuous operating temperature range of -45°C to 125°C. The tubing is yellow in color and comes in 4-foot lengths. It meets UL 224 (File 203950 for colors) and CSA C22.2, 198.1 (File 220127) requirements. It is halogen-free and flame retardant (except for clear variants).