Flanders Precisionaire Nested Glass Air Filter, 20X20X1 Per Case-2488665, 1 Count (Pack of 1), 24

These are awesome, I have an Akita and change them weekly, if It was any other brand I wouldn't be able to keep my dog.

When I first opened the box, I thought that these filters would never work since they are only one sided. I figured I would give them a try. I change my filters once a month, but I checked on this one many times to make sure it was still positioned correctly. Surprise! When I changed my filter, it had worked perfectly!!I am still little leery, but I haven't been checking on it this month. They guy that installed my system said that the easiest way to remember to change your filters, is when you pay your power bill you go directly to change your filter!! This has not failed me for the last six years!

Furnace filters are wonderful and at a great price. They allow the air to blow freely without blocking the circulation. I was using the heavy duty ones and the a'/c unit was noisy because they were not letting the air circulation. They are really reasonable you can change every week. I change these filter 1-2 weeks.

Love the double layer of material. Alot better than what I have been using.

they seem to work the way they are supposed to, just need to change monthly rather than the usual 3 month period.

Came quickly. Arrived 4 per plastic bag in no box. I was concerned about shipping damage, but i didnt see any. Great price. Nice to have on hand.

I received 12 filters one day and two days later, after my phone call, I received the remaining 12.so I received the total order (24) 1 total package and thank you very much.Marilyn

Flanders Precisionaire Nested Glass Air Filter, 20X20X1 24 per case was the best way for me to buy A/C Filters. It is a very popular size where I live and many times when trying to purchase them, I find out too late that they are OUT of stock! I change my filter the first day of each month and they are easy to install, work perfectly and if you buy by the case you are good to go, for 24 months. Plus the price if great too.