I mean, well. I know they're generic, I know they're from China, but they're total rubbish. I'm pretty sure they are either refurbished or refurbished or refurbished defective items or something, they all had witness marks as if they had been previously placed in a filter like mine. In addition, the o-ring is so small that it doesn't fit in the huge groove it sits in, and more often than not it slips out when you try to install the filter. Is that when you want to install it when you notice there are holes on the bottom or the fact that they claim to have coconut shells in them but all I see are white balls and maybe carbon? Also, the packaging was wet inside when I opened it - I understand they may have washed or sanitized it at the factory, which would also explain the stains on the side, but they were wet and dripping like water. is at the bottom of the pocket. Finally, I would like to say that they are about 1/3 the weight of my half-size branded PUR filter, which by the way only needs a 10-second flush and then can be installed. I save money here and there all the time, but I refuse to sell junk when I'm trying to save some money.
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