Features: The copper hose temperature range is -13? to 194?, and it is made of thickened insulation cotton to better reduce damage to the internal copper tube. Please note that the temperature of the insulation layer should not exceed 80 degrees. Pipe pre flared ends with nuts are for simple and easy installation. Copper aluminum coil line set fits most ductless mini split air conditioners. Specifications: Material: PE Color: white Size: 25 ft Package includes: 2 X copper kit pipe Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays