I'm having trouble finding a place locally where I can purchase 16x30x1 disposable fiberglass AC filters from. I can purchase 14x30x1; 18x30x1, or 20x30x1 filters from Lowe's for example but they don't stock nor can they order 16x30x1 filters. The unit in my house now was installed new in 1999 to replace a much older unit which took 16x25x1 disposable fiberglass AC filters; 16X25X1 at the time was a very popular size.
The contractor who installed the new system in 1999 also installed a filter grill unit in the wall below the doorway to the closet where the AC unit is located claiming that I needed a larger return grill; something to do about the old return in the wall wasn't large enough for the new unit he was installing.
The filter grill unit takes 16X30X1 filters which is a size I'm having trouble finding locally so I thought I'd try purchasing off the web. There are so many companies on the web to choose; can anyone recommend a good one to consider purchasing filters from?