Feature:1. PVDF has excellent to chemical,, oxidation, and solvent, and its thermal stability ensures stable working under 298℉.2. Allows for strong, uniform and thorough water and gas mixing with fine bubble, high efficiency and low energy consumption, simple and practical.3. Can be used in generator, sewage treatment, agricultural fertilizer irrigation, swimming pool, dosing device, aquaculture aeration and so on.4. Under 2 to 5kg/cm² input pressure and 0 to 1kg/cm² output pressure, the water output is 1 to 3metre³/h, and the working depth is 0 to 2.5 metres.5. Comes with a compact size and a light weight, the installation is very convenient, and you can directly replace old or bad parts.Specification:Item Type: Venturi TubeCommodity Material: PVDF (polyvinylidene fluoride)Outer Diameter of Inlet and Outlet: 3/4inOuter Diameter of Air Inlet: 1/4inInput Pressure: 2-5kg/cm²Output Pressure: 0-1kg/cm²Water Output: 1-3metre³/hWorking Depth: Approx. 0 ~ 2.5metre / 0 ~ 8.2ft Package List:1 x Venturi TubeNote:When installing and using, you need to pay attention to the direction, short in and long out.