Product review (2 stars): Very Difficult to install
Received the 3 pack last Saturday and couldn't wait to replace the used genuine one. The excitement turned into nightmare  and Sunday with sore fingers. Went back to Amazon review site and found 2 recent reviews match my experience (see below). I can't say anything about filter function yet, Just to share my installation experience.

1) Filters arrived as expected but were somewhat difficult to get lined up and inserted properly. After some time messing around with it I was finally able to get it inserted properly where the original one would insert and remove easily. Otherwise the filter perform as expected.

2) The end on these are square and should be round. It did insert and seat properly and appears to be working normally though. Not sure I will buy these again when I need more.