About This For Customer Service, Please Visit Avalonh2o.com REDUCES CONTAMINANTS: Avalon's high-grade carbon block reduces 99% of potentially harmful contaminants. GENUINE AVALON FILTERS: Avalon filters are designed to work with your Water Cooler to avoid the risk of flooding while giving you clean, filtered water. (Iinstalling a knock off filter brand will be harmful to the product, and will void the warranty). AVOID WATER DAMAGE: Only Avalon filters are guaranteed to perform correctly with your water cooler. LONG LASTING USE: Avalon's water filters offer long-lasting use and easy installation; It is recommended to replace your water filter every 6 months, or 1,500 gallons. Whichever comes first. PATENTED PRODUCT Overview Material : Plastic Product Dimensions : 2.75"D x 2.75"W x 11"H Item Weight : 2 Pounds External Testing Certification : NSF Product Benefits : Improves water taste and removes impurities