1 ” ID x 1 5/8” OD Master Plumber Clear PVC Tubing. Manufactured with Non Toxic FDA compounds. Can be used for flexible lines for low pressure air, water, liquids, beverages, chemicals and gases as well as drain lines for air conditioners and dehumidifiers. Excellent resistance to mild acids and chemicals. See through design allows for visual flow. Not for use with Ice Makers or petroleum based products. Non-Toxic FDA Grade Compound, Suitable for use with liquids, chemicals and gases. Use as flexible drain line. For use with hose barbs and clamps. Temperature Range 25 to 150 Degrees Fahrenheit. Working pressure 30psi at 70 degrees fahrenheit. Master Plumber Dispenser Box Carton contains 50 feet of tubing. Tubing is marked every foot for easy measuring and cutting. Made in North America.