Product review (5 stars): If you're tired of your clothes getting snagged and destroyed by the angry lint filter monster, GET THIS!
My LG DLEX3550's lint filter was lifting up at the right edge, as they so commonly seem to do. Even after disassembling the whole trap assembly and thoroughly cleaning it, the filter still would still not sit flush.
Anything strappy- tank tops, scanty panties, hoodie strings, elastic drawstrings etc., were at its mercy. It wasn't terrible at first, it would only be an item now and then that got all twisted up. However, with each item of clothing it destroyed, the lint filter would proudly sit higher and taller, hence catching more and more. It was a laundry-day downward spiral that went on for a year or more.

Finally after two loads in a row turned into a twisted, tangled, knotted mess of clothes that spent 40 minutes twisting around being mangled and stretched out, I decided it was time to get a new filter. I didn't have to get the other parts listed that some dryers need, but if your whole lint trap assembly is misaligned, it might be a good idea to. 2 days, and $20 later, this filter arrived and I tried it out that night.
It fit perfectly. Totally smooth and flush. Absolutely no problems since. WHY THE HECK DIDN'T I GET THIS THING A YEAR AGO!!!!