Product review (5 stars): No problems
I have bought these for years. Got really nervous when I saw all of the reviews where it wouldn't fit or had to turn ridiculously hard to get it in to place. But I ordered a three pack anyway. It's cheaper on Amazon, and my filter needed to be replaced. No issues at all. None. Went in just like always. No hard wrenching. No modifications needed. I put it in and I'm a female. No big strong male muscles needed.