In- Description 1. Compatible Model: Compatible with OSWNKEW ultrafiltration filter series. 2. Filtration Precision: 0.01 m filtration, which filter out most of the impurities in water. 3. Good filtration performance: Impurities larger than 0.01 m cannot pass through the membrane, but at the same time it also retains beneficial minerals in the water. 4. Made of food-grade materials,which can be used with confidence. Feature 1. Water Quality Requirements: Municipal Water 2. Filter Technique: ultrafiltration membrane 3. Water Temperature:5-38 4. Water Pressure0.1-0.4Mpa(Pls use reducing valve when more than 0.4Mpa) 5. Waste Water Ratio: No Waste water 6. No electricity needed. Precautions After replacing the filter element, when you use it for the first time, please open the water faucet to drain the water. There may be a small amount of foam, which is normal. Please rinse until the water is clear before drinking.