Product Description: These drippers adopt quality material. to guarantee their high quality. Ideal for watering potted plants, gardening and public greenery, landscape production, agricultural production, etc. Features: High quality plastic products, stable and long service life. Pressure compensation (1-4 bar) independent of pressure for constant water flow. Suitable for plants with long row and watering of individual plants. The water flow is 4 l/h from the dripper. This is a common size used on filter systems. water, water coolers, etc. This 4/7 mm pipe is widely used. in horticulture, balcony gardening, garden irrigation and other places. Characteristics: Condition: new. Material: ABS. Color: random. Pressure: 1.5-4.0 kg. Flow rate: 4 l/h. Interface size: 4/7 mm pipe. Package weight: about 84g. Contents: 50 drippers. Note: 1. As measurements are taken at by hand, the sizes indicated may vary from 1 to 2. 2cm. Make sure you don't mind before ordering. 2. Please note that colors may experience chromatic aberration due to the environment in which have been taken the different photos. 3. Please note that the new type and old type of this product will be sent randomly, and make sure you do not mind before ordering.