Feature:1. [With Check Valve] With a unique check valve design, the system performance is improved and the use is stable, so you can use it with confidence.2. [Hydraulically Driven] The venturi fertilizer is hydraulically driven by the irrigation system, no external power is required, to meet your various need.3. [High Reliability] No moving parts, exquisite workmanship, high reliability and low maintenance, it is the perfect choice for irrigation.4. [Durable Material] Irrigation venturi fertilizer is made of high quality plastic material, which is durable, safe and can be used for a long time.5. [Widely Application] The pressure range is 1.5bar5bar, and the fertilization rate is 3kg/mu, widely used in garden, agriculture, courtyard, etc.Specification:Item Type: Venturi FertilizerMaterial: PlasticThread Specification: G2 external threadConnector Specifications: Quick connectorFertilization Depth: Approx. 20mm / 0.8inFertilizer Amount: 3kg/acrePressure Range: 1.5bar-5barApplication: IrrigationWeight: Approx. 770g / 27.2oz.Package List:1 x Venturi Fertilizer1 x Accessory2 x Connector1 x Manual