Description: When the fluid flows through the venturi tube, that will bring vacuum. The fluid caused the vacuum is recognized as moving fluid. For the irrigation injector, the moving fluid is the irrigation water. The vacuum produced by venturi tube imbibe fertilizer and chemical into moving water. Venturi tube is drived by water, namely they drive by the main irrigation tube pressure. Operating energy of these device can reduce the irrigation water load of water pipeline. Specifications: Condition: 100% Brand New Material: POM Plastic Inlet/Outlet Thread Size: #1 1/2 inch, #2 3/4inch, #3 1inch (Optional) Color: as picture Rate of Flow Range: 1/2 inch: 0.29~0.81 M3/H, 0.7~0.95bar 3/4 inch: 0.65-2.42 M3/H, 0.7-9.5bar; 1 inch: 1.82~6.34 M3/H, 0.7-9.5bar Suction Capacity: 1/2 inch: 3~37 L/H 3/4 inch: 9~92 L/H 1 inch: 34~279 L/H Dimension: G1/2inch Size: Approx. 14.2 x 7.4 x 2.3cm / 5.6 x 2.9 x 0.9inch G3/4inch Size: Approx. 14.2 x 7.3 x 2.3cm / 5.6 x 2.9 x 0.9inch 1inch Size: Approx. 19.5 x 9.3 x 2.8cm / 7.7 x 3.7 x 1.1inch Package Weight: 28~92g Package Included: 1 x Irrigation Fertilizer Injector