Suitable for Fertilizer and chemical injection through drip and sprinkler irrigation systems.Based on the motive water flows and Vacuum suction, just need to install the black fertilizer applicator in parallel on the garden lawn water pipe.Economical and low cost options, can available to 3/4 inch BSP inlet/outlet connection Includes a fertilizer injector.Excellent chemical resistance to most of the chemicals Highly efficient and compact differential pressure injection device100% Brand New and High Quality.Excellent chemical resistance to most of the chemicals.Highly efficient and compact differential pressure injection device.Irrigation water tube pipe with flow control switch & filterApplications: Fertilizer and chemical injection through drip and sprinkler irrigation systems.colour: blackmaterial: Engineering plasticssize: The total length of the water pipe is about 228cmThread diameter: about 2.5cmVenturi Length: About 14cmPackage Contents: 1 *Venturi tube1 *Irrigation Water Hose 1 *Flow Control Switch 1 *Metal Mesh FilterOnly 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.