360 Adjustable Degree: 8 Spray holes can adjust water flow and reduce water flow. The role of large water channels and self-brushing helps to avoid blockage. Connection: 1 or 4-inch groove thread connection, 1 or 4`` hose, suitable for 4mm or 7mm tubes (inside or outside diameter). [Make sure the connected parts are placed in 70-80 water 10 seconds before assembly. After cooling, the tube will keep tight. Widely used: ideal choice suitable for in-pot watering, agriculture, lawn, dripping garden irrigation. Efficient use of water: it can be kept constant over a long period of laying or pressure fluctuations, irrigation uniformity and slow watering rate, so that the soil can fully absorb water in the root zone of the plant. Encouragement includes: about 200 times micro tunnel. From the long-term packaging, the Getters may cause some odor. Please open and place air convection within 1-2 days. Feature: Good seal and longevity Automatic cleaning, circulation channel of erosion for water start, slip-free performance Can be kept constant during long-term installation or pressure fluctuations, while irrigation uniformity The ideal choice of self-watering potted plants 1 or 4 inch thread connection Efficient use of water and drip water Economy Specification: Connector Size: 4mm Spray Radius: 0-0.5m Traffic: 0-70L or H Working pressure: 2-4 kg Package content: 4200 cups of irrigation. Suitable for the tube of 4mm or 7mm (inner or outer diameter) how to use: Connect the PE pipe: Use a puncher to make a hole in the pipe drip, then insert the ladder adjustable in the hole. Please use acne less than 0.5mm to rent the hole. Connect the 4 or 7 tube: These irrigation drives can also be directly connected to the hose 4 or 7. Note: The tube should be completely covered. Notes: 1. Please check the working pressure within 4kg and use 1 or 4 inch hose. 2. Due to differences between monitors, pictures may not reflect the true color of this item. 3. Due to manual measurement, please allow 1-2mm.