Review on 🚰 Pentair OMNIFilter CB3 Carbon Water Filter: Under Sink Taste & Odor Replacement Cartridge, 10" x 2.5", 0.5 Micron by Patricia Reed

. These were orders according to the cartridge model in my case. But what I didn't realize was that my case was considered an "older" model and these new canisters didn't fit in my case. They are wider and don't fully fit the case as others have noted in their reviews. After researching and visiting the Omnifilter website, I found that an alternative filter that gives the same carbon microns as this model is CB3a, which is a must for older cases. Revain needs to be more specific with this information as their incorrect inventory disclaimer hasn't rung my bell. leads through Revane. Be careful when ordering "compatible" cartridges sold through other sites unless you are sure you are getting the same 0.5 micron carbon which is at a higher level for good filtration .