Not all replacement refrigerator water filters are created equal, even those that may appear from the outside to be exactly alike. Unfortunately, many counterfeit and deceptively labeled water filters manage to find their way into the U.S. It’s a stretch at best to call these knock-offs “filters,” and the tests show it. If you’re wondering what’s inside the phony filters, it varies. Some contain no more than shredded newspaper.
As part of AHAM’s Filter It Out campaign, experts conducted tests of legitimate replacement water filters versus a counterfeit. This photo hows the results of the testing, which was performed by NSF International.
Why it matters: The blue dye present in the water after it was run through the counterfeit filter represents the contaminants that would have made it into your body had the counterfeit been installed in your refrigerator. Those could have included lead, mercury, herbicides, pesticides, asbestos and pharmaceuticals. As if the risks to your health weren’t enough to worry about, the filter, since it wasn’t designed to fit your refrigerator, could also cause leaks, which can lead to serious and expensive property damage.
The good news is that since many of the counterfeits are sold online by independent sellers, you can reduce the likelihood a counterfeit water filter will end up in your refrigerator by purchasing your replacements from reputable sources. And remember to replace your filter every six months with a model from a manufacturer who will stand behind its products.