Coyote 17 Inch Single Access Door, Vertical - CSA2417

I have had the door for 2 years and it is severely rusted. So much so that the rust has stained the concrete below. I live in the midwest and not in a salty environment. The only reason that i didn't give it one start was because Coyote warranty is sending me a replacement. If something has changed in the stainless steel to where it doesn't rust will update to a 5 star. The rusting was the only issue.It should be noted that I have a Coyote stainless steel grill in my outdoor kitchen in the same environment with absolutely zero rust. Seems like the stainless steel alloy they use for the doors is a much cheaper quality (my guess is less chromium in the alloy).