Master Plumber, .170 ID x 1/4" OD x 100', Polyethylene Tubing, Natural Non-Toxic FDA Grade, Economical & Lightweight, Used For Pneumatic Control Lines & Liquids In Industrial Applications, Also Use For Water & Water Softener Lines, Resistant To Many Solvents, Acids, Alkalis, & Gases, Excellent Choice For Use With Ice Makers, Translucent Milky White Color, Suitable For Use With Air Lines, or Use With Compression Style Fittings, Temperature Range Minus 40 To 150 Degrees Fahrenheit, Working Pressure 140 PSI At 70 Degrees Fahrenheit, Tubing Is Marked Every Foot For Easy Measuring & Cutting, Dispenser Box.