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How Does a Refrigerator Water Filter Work? Does it Actually Work?

A common question often comes to us that “how does a refrigerator water filter work? And does it actually work as expected?” Well, the working principle of refrigerator filters is not complex, and a study conducted by the University of Arizona and Good Housekeeping found the refrigerator water filter is one of the most effective means for removing pollutants and chemicals, providing fresher and healthier drinking water for the household.

How Does a Refrigerator Water Filter Work?

Water passes through miles of piping before reaching your home. along the way it may pick up impurities like pollutants from the air, pharmaceuticals flushed into water supplies or waste from manufacturing plants. To filter water with activated carbon water filter is deemed as the most practical and efficient method for removing contaminants, chlorine, taste and odor from water. So, when it comes to the working principle of refrigerator water filters, they remove contaminants and harmful components in the water by forcing the fluid through the activated carbon block media located inside the filter. The carbon acts like a contaminant magnet trapping pollutants and particles, then the end product is the clean, hygienic and drinkable water for you and your family.

Does a Refrigerator Water Filter Actually Work?

Facts have proven that a refrigerator water filter can help remove most of the contaminants like chlorine and trace pharmaceuticals, as well as heavy metals such as mercury and lead in drinking water before needing to be replaced. An overused fridge water filter lacks the capability to properly remove harmful substances existing in the water. As soon as the carbon block inside the water filter becomes completely covered with contaminants, the water traveling through the filter becomes untreated, leaving you with polluted water. Water that passes through the overused filters can even dislodge some of the trapped pollutants back into the drinking water. Don’t worry, keeping your refrigerator water filter replacement every six months will prevent this from happening, that is to say, fridge filters work great as long as they are maintained and replaced regularly.

Clatterans Best Refrigerator Water Filters Comparison


Product Whirlpool Refrigerator Water Filter 1 EDR1RXD1
Kenmore 9030 Refrigerator Water FilterMaytag UKF8001 Refrigerator Filter Replacement
Frigidaire Water Filter WF3CB Ultrawf Water Filter Whirlpool W10413645A Water Filter 2
Package Quantity 2-Pack 2-Pack 2-Pack3-Pack3-Pack
Price $ 42.99$ 42.99 $ 39.99$ 49.99$ 54.99
Dimensions 10.6*2.2*2.2 Inch11.4*2.2*2.2 Inch 7.8*2.2*2.05 Inch 10.6*2.2*2.2 Inch7.2*1.81*1.81 Inch
Capacity 300 Gallons 300 Gallons 300 Gallons 200 Gallons200 Gallons
Flow Rate 0.5 GPM 0.5 GPM0.66 GPM 0.5 GPM0.528 GPM
Operating Temperature34-100°F 34-100°F 34-100°F 34-100°F34-100°F
Operating Pressure 20-120 PSI 30-125 PSI 20-120 PSI 30-100 PSI20-120 PSI
Filter Life 6 Months 6 Months 6 Months 6 Months 6 Months

The water filter replacements available at Clatterans have some common features. Certified and tested by IAPMO and NSF/ANSI Standards 42, the filters are designed with activated carbon block for effective water filtration, as well as compatible with various types of refrigerator models. All water filter cartridges are needed to be replaced once every six months.

For an overview of other refrigerator water filters, visit Clatterans.com.


Make sure to change your refrigerator water filter as often as the manual specifies. Enjoy your clear, healthy and great-tasting drinking water every day!


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