I bought this product because I have an Ispring 6 stage reverse osmosis filtration system. After about 2 years, a micro-hole formed in the plastic of one of the covers of the filter housing, which had to be replaced. casing is ok. The only issue is the lid, but Ispring doesn't just sell lids so I had to buy both pieces together. The first replacement cap didn't even last two months before it got a micro-hole and became unusable. I've read other reviews on the subject but had no choice unless I wanted to replace the entire filter system. Beware!
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