I would like to buy the TOP OF THE LINE FILTERS for my FURNACE, can anyone tell me who makes the best filters?
What I have is a 2" inch thick filter that I use. I would still use this type but am looking for one that works more efficiently. I do understand the thicker the filter the better it is. But without changing anything I would like to stay with size, I am using the MERV 8 is there any better one?