XUANYUAN flexible PP suction hose is made of PP with spring steel wire. This PP flexible drain hose has is very light and has good resistance to alkalis and acids, chemicals, UV, and ozone. Ecoosi flexible PP air hose could handle working temperature range from -20 °C approx. to +80 °C approx. This flexible PP duct hose’s standard length is 5 meters, cold compress to 1 meter, size range from 25mm to 250mm