Joe,
I measured my filters and this is what I got:

L20051 - 4 3/4"
Offy - 5"
Sock - 5.1/2"

So I think Amazon may be off on their measurements?

I am going to try a Wix 24949 at 3.4 x 3.4 x 3.2 inches. Again, Amazon so the proof will be in the pudding....

Take care,
Steven
No one can drive us crazy unless we give them the keys.