7-38B is for use with air conditioning and refrigeration condensate drains, condensate pump discharge lines and humidifier overflow drain lines. This braided tubing is designed to be kink resistant, lightweight and flexible. It will withstand rough handling and heavy usage while maintaining dimensional stability. Made of high quality materials with smooth interior and exterior that prevents sediment accumulation, allows easy flow. The tubing is easy to shape, bend and install. Diversitech Braided Tubing, Accessory Type: Braided Tubing, 100 ft L, 3/8 in ID, For Use with: Air Conditioning and Refrigeration Condensate Drain, Condensate Pump Discharge Line and Humidifier Overflow, Vinyl, Clear, Import