Review on 🔒 Watts Premier Lead, Cyst, VOC Carbon Block Two Stage Replacement Filter Pack - 1 Count (Pack of 1) by Beth Henderson

So this is my second time buying this "same" pack from Amazon, I deliberately put quotes because it's a different cartridge that I received last time. As the photo shows, my previous purchase was gray (who cares about color) but the main difference was that it had a flow control hole - see that little hole? This regulates the flow and thus gives the activated carbon filter the ability to absorb impurities. My new blue filter has a huge opening that allows for uncontrolled flow and therefore low absorption filtration. Luckily I have a valve that allows me to reduce the flow to mimic the old filter's flow control, but the point is I don't have to. Aside from being inconvenient and now making noise when I run the filter, this is a different product marketed as 'the same thing'.