The HST1.5-48-5Y 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. 1.5″ (38.1 mm) dia. 48″ (1219.2 mm) length. Color Black. 5 per package.