Clear vinyl tubing, 5/16 in x 3/16 in x 20 ft. Polyvinyl is manufactured to exact specifications, which gives it the flexibility of rubber and the clarity of glass. The smooth, dense bore maximizes flow and reduces sediments build-up. This pvc tubing handles a wide variety of chemicals, gases and liquids. It has an excellent resistant to acids, alkalis and many solvents. Makes drainage lines and can be use for protective insulation. Do not use for ice makers. 1 year warranty.