Upgraded water filter 7 layers of filtration to make the water slightly alkaline. Depending on the water source, the pH value usually increases by 0.5 to 2 or more. Filtered pH from 710 depending on your tap water. Can effectively filter the water from fluoride, chlorine, dirt, harmful metals and other substances in the water, remove the odor, to provide clean and healthy drinking water.Through the SGS certification, using natural coconut shell activity, ion exchange resin, PP meltblown fiber.Easy to install the filter, the filter on the lid can be easily inserted and removedInstructions for first use of the filter Clean the filter under running water for about 1 minute, then place the filter in water and shake gently for about 2 minutes. This is the best way to use the filter, will not leak and provides a smooth flow of filtration.On average, replace the filter every 40 gallons or about every 1 month to keep your tap water healthier and tasting better.