MADE IN THE USA : PREMIUM QUALITY MATERIALS CONNECT TO DRIP IRRIGATION PARTS: Connect to main supply line with 1/4 in. micro fitting such as a barbed connector, connect other end directly to emitter to deliver water directly to plants. Works with Raindrip, Rainbird, and most major brands drip irrigation products and other products with compatible connection type DURABLE : Made with high quality UV resistant materials for long life in residential and commercial landscapeing and garden use. SIZE / SPEC : SPECIFICATIONS: Comes with one 50, 100 OR 500 ft. coil of ¼ in. poly supply tubing; Tubing outside diameter (OD) is 0.250 in., internal diameter (ID) is 0.170. in. CONNECT TO DRIP IRRIGATION PARTS: Connect to main supply line with 1/4 in. micro fitting such as a barbed connector, connect other end directly to emitter to deliver water to plant; works with Raindrip drip irrigation products and other products with compatible connection type SPECIFICATIONS: Comes with one 50, 100 or 500 ft. coil of ¼ in. poly supply tubing; Tubing outside diameter (OD) is 0.250 in., internal diameter (ID) is 0.170. in.