Waters up to 6 boxes and 20 plants. * 20 Deluxe Pressure Compensating Emitters * 1 - 1/4" Drip Emitter Tubing (6" spacing) - 100 foot roll * 1 - 1/4" Drip Emitter Tubing (12" spacing) - 100 foot roll * Max run length for the drip emitter tubing: 6" = 19 linear feet, 12" = 33 linear feet