Orbit DripMaster 67216 Inline Dripper, 1-Gallon Per Hour 10-Pack Ideal for watering potted plants and plants spaced 10-inch to 20-inch apart Allows multiple drippers to be installed on a single 1/4-inch tubing line Compatible with all standard 1/4-inch drip tubing Durable construction provides years of reliable use For outdoor use with cold water only Saves water in drought conditions