Nylon Flexible Tubing, Red, Opaque, 3/8" ID, 1/2" OD, 0.062" Wall, 10' Length Flexible tubing for use with water, air, and ethylene glycol Nylon for strength, flexibility, and resistance to abrasion Shore D Hardness rating of 70 for resistance to crushing and cracking Operating temperature range of -60 to +200 degrees F For use with compression fittings