Rain Bird Emitters 2.0 gph (gallons per hour) emitters are ideal for supplemental watering of individual plants. They can be used in-line with 1/4 in. tubing or inserted into the side wall of 1/2 in. distribution tubing. Applies water directly to the root zone * Also available with other watering rates to allow customizing flow to different plant types and sizes * Suggest using Rain Bird installation tool (model ET-1PK) for easiest insertion into ½ in. tubing * 2 GPH flow rate * Pressure compensating to maintain equal flow to each plant * 30 pack * Self-piercing design; use in-line with 1/4 in. drip tubing or insert into 1/2 in. or larger drip tubing * Constructed of highly durable UV and chemical-resistant materials to assure long life * Total satisfaction policy * Slow watering rate allows soil to absorb water more completely in the root zones of plants