Product review (1 stars): RIPPED OFF 2 out of 3 work now its to late to get a replacement because they are to be installed every 6 months
i just opened the 3rd of the 3 filters and it doesn't work, how am i supposed to know if it works or not then one buys a 3 pack? you install them every 6 months! now iv'e been ripped off because the return policy is only good for 90 days. it may be less expensive to buy 3 at a time but if the last one you open is bunk your SOL