Pressure compensating (5-40m ) regardless of the pressure for consistent water flow.Fit for long row plants and drip watering individual plants.The water flow is 8L/h of the dripper. this is a common size used on water filter systems, water coolers, and so on.Products using the new high-quality plastic, stable quality, can use for a long time. It is widely accepted by users.COLOR: BLUEPressure compensated.Compensation constant outlet pressure regardless of pressure changes.Self-cleaning. Has a 1/4-inch barb thread connection.Material: PEInterface size: 4 mm hoseIncludes: 200pcs sprinklerOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.