Kalkehay 5.9-Inch Counter-Clockwise Threaded Exhaust Hose Our exhaust hose is made of high quality PVC materials without any chemical odor. It's heavy-duty, long-lasting and the good replacement for your cracked portable air conditioner exhaust hose. The 5.9-inch counter-clockwise thread fits most brands of the portable air conditioner models. Specifications: Color: Light Grey Material: PVC Outer Diameter: 5.9 inches Thread Direction: Counter Clockwise Maximum Length: 78.7 inches Minimum Length: 14 inches Temperature Range: -40?-150? Package Includes: 2 x Air conditioner exhaust hose Kind Tips: Our hoses are 5.9-inch in diameter and counterclockwise. Before purchasing, please make sure the size and thread are compatible with your portable ac units.