This SMC black tubing is all-purpose flexible tubing for compressed air applications. It is made of nylon for strength, flexibility, and resistance to abrasion and cracking. It has a Shore D Hardness rating of 56 for resistance to abrasion and puncture. This tubing is compatible with nylon and polyurethane tube fittings. It has an operating temperature range of -4 to +140 degrees F and a maximum operating pressure of 145 pounds per square inch (psi) at 68 degrees F. This inch-sized nylon tubing is suitable for general compressed air applications and is sized for industry consistency and interchangeability.Plastic tubing is used to transfer liquids, air, or solids, and it is characterized by a round, rectangular, or square shape and a hollow center. Plastic tubing is crimp-resistant and varies in bend radius (flexibility), chemical resistance, wall thickness, durometer hardness, and temperature and pressure handling abilities. The clarity of plastic tubing may be transparent (clear), translucent (semi-clear), or opaque (solid), and the tubing's coloring may indicate suitable applications. Barbed fittings are used to connect tubing or redirect flow in a fluid handling system. Plastic tubing is used in a wide variety of industries, such as agriculture, automotive, laboratory, and medicine. Applications for plastic tubing include blood and fluid handling, peristaltic pumps, electrical and thermal insulation, analytical systems, and food and beverage handling, among others.SMC Corporation manufactures actuators, valves, airline equipment, connector fittings, electrical products, vacuum products, dryers, temperature control chillers, and accessories. SMC Corporation of America is headquartered in Noblesville, IN, and meets International Organization for Standardization (ISO) standards 9000:2000 and 9001:2008.