Filtrete 20x20x1 Basic Filter FPL02-2PK-24 Pack of 24

Been searching high and low for a polyester filter that flows as free as possible. Too many people get hung up on what the filter will filter out and forget that a furnace has to breath too. Otherwise the blower motor works too hard and is more apt to burn out as well as the a/c a-coil being more prone to freeze up. Do some internet research. My furnace has a static pressure issue ( more furnaces do than people realize) and wanted something better than the spun fiberglass filters that dont really filter- you can pour salt right thru them. This filter fits the bill... The merv 5 rating (3m equivelant of 100 in their rating system) is the only merv 5 that the big box stores sell in my area. Just wish they would go back to the standard 'boxed' framework that seals so much better. Give them a try and see if you dont get better airflow thru your discharge vents and save on your bill sinc ethe blower dosent have to work so hard.

I was hoping that I'd just bought a bad package of these but after reading reviews of other long time users, it looks like the quality has really dropped on these. I've been using this product for about 10 years and have been very happy with them. This last package contained filters that are too small to fit up in my ceiling intake. They drop down onto the grill and the air can be pulled up around the filter instead of going through it. If this is what I find in the store again, I'll be shopping for a different filter.