Chain Cover, Compatible Chain Trade Size 5/16 in, Installation Method Heat Shrink, Expanded Inside Diameter 1 1/2 in, Recovered Inside Diameter 3/4 in, Shrink Ratio 2:1, Material PVC, Color Clear, Overall Length 15 ft, Minimum Operating Temperature -4 Degrees F, Maximum Operating Temperature 221 Degrees F, Recovered Wall Thickness 0.043 in, Standards UL 94