Purchased replacement filters from ispring. The 5th stage filter will not fit the 2 year old iSpring 5 stage reverse osmosis system. As shown in the picture above, the left one is the old 5th stage filter, the right one is the new 5th stage filter. Terminators don't match. Be careful before you buy these filters. ISpring - Let me know if you have any suggestions to solve the problem.
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