F4214IN BK107 — 4:1 Heat Shrink Tubing from Alpha

Alpha F4214IN BK107 is a black 4:1 heat shrink tubing engineered from durable cross-linked polyolefin (XLPO) for exceptional insulation and heavy-duty protection. With a nominal inner diameter of 4.0 inches and a recovered inner diameter of 1.05 inches, it delivers reliable performance in temperatures from -55C to 135C. Over-expanded except wall thickness, it meets UL VW-1, CA Prop 65, AMS DTL-23053/5 Class 1, and RoHS compliance standards. Weighing approximately 4.2 lbs per 1,000 feet, this tubing is ideal for large-diameter cable insulation, environmental sealing, and mechanical protection in demanding industrial, marine, and aerospace applications.