The HST0.4-48-5Y Thick Wall Heat Shrink features an adhesive lined inner wall that seals and provides excellent protection against moisture. Applications include insulating and protecting wires/cables in outdoor, wet locations. Thick wall for direct burial. Voltage rating: UL 486D Listed for 600 V 90°C continuous use. Shrink ratio: 3:1. Temperature range: -67°F to 230°F (-55°C to 110°C). Cross-linked Polyolefin. 0.4" (10.2mm) dia. 48.0" (1219.2mm) length. Color Black. 5 per package.