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20x20x1 Air Filter Glasfloss ZL Series MERV 10 – Box of 12

Actual Size: 19-1/2 x 19-1/2 x 7/8
  • SKU: ZLP20201
  • MERV 10 performance with the no more resistance than MERV 8
  • Compare to MPR 900-1000, or FPR 7
  • Moisture Resistant, Heavy-Duty Construction
  • Eco-Friendly Design with Post-Consumer Materials
  • Easy to Install and Remove
  • 100% Synthetic Fibers Won’t Support Microbial Growth
  • 3 Month (90 day) Air Filter.
  • How Often Should I Change My Air Filters?

Original price was: $89.04.Current price is: $66.36.

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The Glasfloss MERV 10 Z-Line 20x20x1 air filters excel at removing allergens and dust from the air, making your home’s air cleaner. We designed the sturdy frame using heavy-duty, moisture-resistant materials, including recycled content, to make it easy to install and remove from your HVAC system. The synthetic fibers in the filter media won’t support mold growth or absorb moisture. By thermally bonding all parts together, we ensure extra durability. Choose these filters for their reliability and effectiveness in both homes and businesses.

About Air Filter Sizing

There are two main ways to refer to air filters: their Nominal size and their Actual size. The Nominal size is a simplified version of the dimensions of the filter and is how it is typically labelled and sold. The Actual size, however, is the exact dimensions of the filter. Some filters may have the same Nominal size, but different exact dimensions, which is why the actual size is important when it comes to ordering filters. For more information, please see our article "Nominal vs. Actual Air Filter Size”

MERV 10 Can Capture

MERV 10 Efficiency

MERV 10 air filters offer an upgrade from MERV 8 without making your system work harder or adding resistance. They are great for removing many allergens and providing better indoor air quality to your home or business.

How often should I change this air filter?

While we give an estimated life of each filter, how often your air filter needs to be changed depends on your individual situation. How many people live/work in your space, if you have pets, and even your location and time of the year can all affect how quickly your air filter gets dirty. We recommend checking your filter once a month to keep track of how dirty it’s getting. Check out our video explaining this in more detail on our “Air Filter Change Frequency” page.

How often to change your air filter.
Made in USA

Made in the USA

All Glasfloss air filters are proudly made in the USA in five manufacturing facilities across the country. Florida, Ohio, Texas, Nevada and Wisconsin.

Customer Reviews
4.9 Based on 250 Reviews
5 ★
93% 
233
4 ★
5% 
12
3 ★
1% 
3
2 ★
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Filter Reviews:
RC
03/23/2024
ROY C.
United States United States
I recommend this product

Great Filters

Excellent. I needed a little smaller filter size than commercially made filters for the door to close properly on my AC units. These fit perfectly. The filtering and airflow ratings are a perfect combination for my needs. Recommend this filter and your company for great service.

NM
02/12/2024
Nancy M.
United States United States
I recommend this product

Perfect Fit

The filters that I purchased after installation of A/C @ big box stores did not fit. I need this to have an accurate fit. They are sent in a large box & none were damage during shipping. I always order my filters from you all! Keep up the good work!

CG
01/26/2024
Cleo G.
United States United States
I recommend this product

Air Filters Unlimited - the best source for A/C filters!

I have been purchasing my A/C filters (Glasfloss ZL Series MERV 10 - box of 12) from Air Filters Unlimited for several years now. This company always takes care of its customers with reasonable pricing and quick, free shipping. These are some of the best air filters on the market for a home unit. I purchase the box of 12 and change them on a monthly basis. Having the filters on hand makes it easy to remember to take care of your air conditioning unit as well as your lungs! We live in the Texas Hill Country and during cedar and oak pollen seasons, I often change the filters a bit more frequently. You won’t go wrong buying from Air Filters Unlimited�

JW
12/24/2023
Jon W.
United States United States
I recommend this product

Convenient and great pricing.

Love the price! I got twelve for the price of 3 at Lowe's or Home Depot. It's a filter. I can't say that I experience anything.

RB
12/15/2023
Rita B.
United States United States
I recommend this product

Air Filters Unlimited

We love them better than any we've used in the past! Glad Our AC tech Guy recommended this Company!