Could not use these filters because the a/c has a fixed width filter holder. Two MERV 9 filters fit but the two MERV 11s you sent were a 1/4 inch too wide each.
I feel OCD to mention it, but I found it disturbing that my side by side 2 in filters had vertical pleats in one and horizontal pleats in the other. I doing see that it makes any difference though. I am hoping I will have nothing to think about when my subscription brings me two new Merv 11s in 3 months.
I am a satisfied return customer to Filter Buy for custom filters to fit my furnace. In fact I just signed up for quarterly shipments for more convenience and cost savings.