1214D x 4L, Red, Heat Shrink Tubing, Resists Common Fluids Solvents, Meets UL 224, 125 Degrees Celsius, CSA C222 No 1981, 125 Degrees Celsius, MilDtl230535, Class 1 2, AMS 3636 3637, DEF STAN 5979, Issue 3 Type 2A, Continuous Operating Temperature 55 Degrees Celsius, 67 Degrees Fahrenheit, 135 Degrees Celsius, 275 Degrees Fahrenheit, Shrink Temperature 120 Degrees Celsius, 250 Degrees Fahrenheit, 250 Degrees Celsius, 480 Degrees Fahrenheit, 600VMil Dielectric Strength, 21 Shrink Ratio