The size was what I needed. The filtering material looked very good.The slot I have is very rough and I could use a structure that is a little stronger than the "Walmart" cardboard.
I recently purchased four MERV 11 filters from Filter Buy. Not only were they cheaper than the HVAC company that installed my heat pump, I also was able to get the MERV 11 ones instead of the MERV 8 ones that were originally sold to me. Thanks!