GlasflossIndustries ZLP20251 Z-Line Series ZL MERV 10 Pleated Filter, Case of 12

These filters are terrific and they are at a good price point. They are much better than the inferior poorly made filters available at retail stores. They are also at a price point that is far less than the premium filters sold at retail stores as well.

These filters are sturdy, work well and were delivered very fast.. The seller is knowledgeable and quickly got back to me when I contacted him with a question. I have no reservations about recommending this seller to anyone

This is the brand of air filter that was installed with our new HVAC system. I was happy to find the brand available through Amazon; the price was right, delivery was on schedule and it's nice to be able to get a box of 12 - - enough for a year if I'm real conscientious about changing them, longer if I'm not . . . .

Same Filter as my AC company uses. The price is half of what they charge per each unit. I leave them in the FAU closet and have ready to change out when needed. Good product, will purchase again and recommend.

Just what was needed.

We were having trouble with our Air-conditioning unit and had it fixed. We always used Filtrete filters with a high rating. We asked our Air conditioning technician whether we were using the proper filters and he said absolutely not. The filters were too constricting and not allowing the proper flow of air. He recommended Glasfloss ZL for our unit. He would not even allow us to put back the Filtrete filter after he fixed our unit. He told us to go to Home Depot and buy a filter for $3.00 and use it temporarily until we find the Glasfloss filters. We spoke to the sales help at Home Depot and one of them said not to use Filtrete and that they wanted Home Depot to stop carrying the Filtrete filters because they were way too restrictive and can cause issues with the units. Of course none of the stores carried the Glasfloss filters. We drove an hour to find a store that carried the Glasfloss filter. We installed the new filter and now our unit runs in a whisper. We order a box of Glasfloss from Amazon (of course they carried exactly the same Glasfloss filter that we bought from the speciality store for less money). These Glasfloss filters will last us for a few years and we are glad we listened to the air-conditioning technician. We also pour a cut of vinegar and water down the overflow valve of the unit to keep it clean from mold as recommended by the technician.

I bought these because it's the brand our HVAC installer used. I love that there is a spot to mark the date you install it, and the 12 pack makes it easy to change the filter once a month. It's a great value and convenient option!

I purchased my first home 6 months ago, and for the first 5 months I used cheap fiberglass filters that I bought at Walmart. I changed the filters every month even though there was nothing on them and they still looked like new. Then I adopted a dog who has pollen allergies, and since she was sneezing every day, I decided to use better filters. Can't remember why I decided to buy MERV 11 instead of MERV 8, but I'm glad I did, because not only has my dog stopped sneezing, but I'm an indoor cigarette smoker, and these MERV 11 filters noticeably reduce the smell of cigarette smoke in my house! This filter is supposed to be changed every 3 months, but I decided to take a look at the filter after one month of use, and what a surprise! The white filter was brown! (Note: The filters appear to be brown or beige in the Amazon ad photos, but the filters I received were white.) I live in Arizona where the dust is brown, so maybe that's why it was brown. Or maybe it was brown because it trapped cigarette smoke. Regardless of the reason why it was brown, I'll be changing the filter every month. The benefits it provides are worth it!

Perfect fit