Provide pure water to your ingesting everyday. Protect your home, health, and home equipment by means of filtering your water. Inner and outer diameter of membrane wire: 400 +/- 10/600 +/- 10μm Purified water flow: 3500ml/min Operating temperature: 4-45 Celsius Working pressure: zero Filter precision: 0μm Bursting strength: more than zero Recommended replacement period: 12-18 months Interface: 20 inch flat mouth universal Colour: picture coloration Material: Hollow fiber Size: 508x70mm Package Contents: 1 * clear out features Only the above kit content, different merchandise will not be included. Note: Light and varied reveals may cause the colour of the thing in the photo slightly different from the real thing. The dimension allowed error is +/- 1-3cm.