1/2" Dripline Emitter Tubing | 100 Ft RollDripper line is ideal for rows, raised beds, pots, and flower boxes. Built In emitters every 12 inches. Each emitter is 1 Gallon per hour (GPH) UV resistant polyethylene Compatible with all common 1 2" barbed drip irrigation fittings. Size: 1 2" (. 600" ID x . 700" OD) Made in USA This 100 ft roll is longer than an NBA basketball court, giving you plenty of coverage for your garden.