Filtration Methods:FiltrationMethod 1:Activated CarbonFiltration Method 2:Catalytic CarbonFiltration Method 3:Ion ExchangeFiltration Method 4:Mechanical FiltrationFeatures:Filters contaminants that you can see, smell and taste, and those you can’tNSF Certified to standards 42, 53, 401 and 473.Can filter up to 200 galloons of water or 6 monthsEasy installation1-year warrantySpecifications:Height:8.75 in.Width:4 in.Depth:3 in.Filter Life:6 monthsFlow Rate:0.5 (Gallons per minute)Min. Feed Temp:40° FahrenheitMax. Feed Temp:90° FahrenheitProduct Weight:2 lbs.