Coway Aquamega 100 water purifier provides triple-filtered water from your home tap, resulting in cleaner, great tasting water. The easy to replace water filter system uses a sediment water filter, a pre-carbon water filter, and a post-carbon water filter to reduce up to 99.9 percent of contaminants. At five inches-wide, the sleek one-touch unit fits conveniently on countertops and can be attached via a faucet connection in minutes or installed under the kitchen sink. Able to process up to 500 gallons of water between filter changes.