Air Power Line is the original 3-in-ONE tractor to trailer hook-up line. ·3/8" ID SAE J1402 rubber air lines available with black or red/blue ·ABS performance power line meets the performance requirements of SAE J2394 ·SAE J560 Buffalo Plugs sleeves for superior corrosion protection and strain relief ·Heavy duty, beveled edge spiral wrap gathers all lines into a tangle-free bundle ·Spoon cut end on spiral wrap eliminates sharp end which can damage the hose or electric cable