I like these filters because they are easy to change and out of all the cartridge filters I've used they seem to be the best. With the s10, I turn a page every week. They are also very cheap like 75 cents a cartridge, I spend 5 times more a day on coffee lol. As is common with Amazon's unusual pricing at the time of this review, the fewer you buy they get cheaper, so I'm only buying 103 packs for $23 rather than an 18 pack for $27. If I haven't missed anything and it's 18 packs of 3. You never know with the horrible descriptions by Amazons, but I won't risk it because it's probably only 18 rounds.
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