SGF-DSB30 Refrigerator Water Filter PureH2O Water Filters provide the purest, safest, and most sustainable choice of drinking water without the environmental impact by avoiding single-use plastic bottled water. This water filter for refrigerators removes up to 99.99% of all impurities from water to produce clean water thats far purer than any bottled or filtered water. The taste, clarity, and aroma of water are preserved. Your water will taste better than ever with this water purifier. Clean, Refreshing, Odor-Free Water - Purer Than Bottled Water The coconut carbon-activated water purifier for refrigerators absorbs chemicals and reduces sediments from water, along with particles as tiny as 0.5. It reduces the smell and taste of chlorine for better-tasting water without reducing the beneficial fluoride. It has a leak-proof casing around the filtration block that will eliminate any residue from leaking into the refrigerator. For the most optimal results and performance, replace your water filter every 6 months.