Venturi Fertilizer Applicator G12 Fertilizer and Filter Straw Kit with Four-point Connector 1. The Venturi fertilizer applicator can be installed in parallel with the water supply pipe control valve of the irrigation system. When using it, adjust the valve on the main water pipe to form a proper pressure difference before and after it. 2. It can also be directly connected in series to the pipeline, using the vacuum and atmospheric pressure generated by the Venturi fertilizer applicator to evenly suck the fertilizer solution from the open fertilizer bucket into the pipeline system for fertilization 3. Venturi fertiliser applicator has the characteristics of low cost, easy to use, no need for additional power, etc. 4. In addition, a control valve is also designed in the venturi filter straw kit to adjust and control the suction volume 5. The Venturi-type fertilizer injector is installed in parallel with the water supply control valve at the entrance of the irrigation system of the irrigation system. When in use, the control valve is closed to form a pressure difference before and after the control valve, so that your fertilizer dissolved in the water can be sucked into the Venturi. The inside-type fertilizer injector then flows into the water supply pipe 6. Using the vacuum suction generated by the water flow through the venturi tube, the fertilizer solution is evenly sucked into the pipeline system from the open fertilizer bucket for fertilization. Make your operation more convenient and simple 7. If the fertilizer concentration is stable, no additional power is needed, which saves your time and resources. 8. Using the siphon principle, it is convenient to inhale various liquid fertilizers and inject them into the irrigation pipes, so that the water and fertilizer are evenly irrigated to various crops 9. G12 inlet and socket external thread for easy connection 10. Widely used to inject liquid fertilizer through drip irrigation system 11. It can be matched with the fertilizer injector kit for easy connection to the ma