Strata Density Fiberglass Air Filter [Set of 12] Size: 25" x 20"

Arrived fast and in good condition.OK, they are made cheaply but they are cheap. It is a spun glass filter with a light cardboard frame. The good thing about them is they keep the dust down (but not like a hepa filter) and the air flow high. Some of the new high filtration filters restrict airfow enough to cause a problem if you are like me and get a little lazy about changing all the time. It is a tradeoff yes but the others would clog in 30 days. With these I get 60 days and have a lot better airflow which translates into a more comfortable home without working the air conditioner so hard.

When we recently replaced our A/C unit with a more energy efficient one, the company suggested that we change filters every two weeks in the summer time (we live in a very dusty farm area). When we asked what was the best filter to use, he suggested that we use this type filter.These are great filters - lets lots of air through and catches the dirt and the other things that air unpleasant. Product arrived on time and undamaged.

Great price and works great.

Does its job but very flimsy.

these filter are better than what i have found in store you can see how much more dust it is picking up

The frame is cheap cardboard and crushes easliy. So easily that they came crushed on delivery. Invest in a better product.

product as described.