Love getting these filters delivered. They fit the intake vents better than the ones from my local hardware store. And I can get filters with a higher filtration score than what comes off the shelf.
Im a little concerned about the merv 13 rating in that when I got 13 rating on previous 16 x 25 filters they were brownish yellow and the new 28 x 30 filters are white like the merv 9 rated filters I got a couple years ago. Can merv 13 filters be white?