Cross Linked polyolefin tubing is much stronger than PVC tubing and will not burn like PVC. Heat activated adhesive lining provides impervious seal to salt water, oil, acids, and sunlight as well as providing strain relief. Nylon insulator, preferred by experts, for Marine Grade™ resistance to sunlight, water, oil, chemicals, vibration and cut-through damage. UL Listed and CSA Recognized Highest shrink ratio - shrinks to 1/3 original size. Shrinks at 257° F/125° C. Operating temperature range 40° C to 110° C. ANCOR heat shrink connectors offer heat activated adhesive built into the sleeve of the heat shrink tubing Shrinks to form a water tight seal and the ultimate vibration and strain relief. Tinned for corrosion resistance. Pure copper for maximum current flow. Brazed seam for maximum strength. Wire Range mm� Screw Size Qty/Pkg Part No 12-10 3-5 #10 100 312399 12-10 3-5 #8 100 312299 12-10 3-5 3/8 100 312699 12-10 3-5 5/16 100 312599 12-10 3-5 1/4 100 312499 16 - 14 1-2 1/4 100 311499 16 - 14 1-2 5/16 100 311599 16 - 14 1-2 3/8 100 311699 16 - 14 1-2 #8 100 311299 16 - 14 1-2 #10 100 311399 22 - 18 0.3-0.8 #10 100 310399 22 - 18 0.3-0.8 #8 100 310299 22 - 18 0.3-0.8 3/8 100 310699 22 - 18 0.3-0.8 6.4 100 310499