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 1.5bar‑5bar, and the fertilization rate is 3kg/mu, widely used in garden, agriculture, courtyard, etc. Specification: Item Type: Venturi Fertilizer Material: Plastic Thread Specification: G2 external thread Connector Specifications: Quick connector Fertilization Depth: Approx. 20mm / 0.8in Fertilizer Amount: 3kg/acre Pressure Range: 1.5bar-5bar Application: Irrigation Weight: Approx. 770g / 27.2oz. Package List: 1 x Venturi Fertilizer1 x Accessory2 x Connector1 x Manual