This 3/8" OD x 1/4" ID x 20' clear vinyl tubing is made from plasticized polyvinyl chloride and has the flexibility of rubber and the clarity of glass. The smooth dense bore maximizes flow and reduces sediment buildup, and handles a wide variety of chemicals, gases and liquids. It is resistant to acids, alkalis and many solvents which makes this tubing an excellent drainage line. Applications include: beverage dispensing, potable water, drainage lines, aquarium tubing, laboratory tubing, protective insulation.