Opus makes a couple of variations of this type of squirrel-proof bird feeder: a tube feeder surrounded by a wire cage that the squirrel cannot chew through. This particular one is called the Opus Top Flight squirrel-proof bird feeder.
Unfortunately, this is another example of a "squirrel-proof" bird feeder that does not work.
It’s true that the squirrel is unable to reach the feeding ports and cannot chew through the mesh to damage the feeder. However, this bird feeder lacks a couple of key design elements which really make a bird feeder squirrel-resistent.
First, the this feeder has a seed tray at the bottom of the feeder tube which catches the fallen seeds. It’s great to prevent wasted seeds. Unfortunately, it is also great for the squirrel. He can easily cling to the wire, hang upside down, and each the seed from the tray. (I’m speaking from personal experience on this one.)
If you’re going to invest money in a squirrel-proof bird feeder that you really want to work, this is not the one.

For how long are these warrenited?
The good news is that all of the Opus feeders seem to have a lifetime warranty. Other people who have reported issues after a few years of use have gotten a replacement free. Try giving Opus a call at 800 809 1819 or emailing customerservice@opususa.com .
I presently have one of these bird feeders , that has faded and started cracking (bought 5 years ago). I would like to replace it with a new one and would like info on where I could buy a new one or how I could aquire one . Even if it’s warranted for Life , I just want to know where I can get a new one ,I really don’t want a substitute , I’ve used this old one and Love it , Lowes appears to have quit stocking this particular feeder.If I can get this old one replaced by warranty Great ! If not I still would like a new one,I have the original box it came in…
Thank You,
M.T. Feagin