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21-1/2×23-5/16×1 MERV 10 Glasfloss Pleated Air Filter – Box of 6 – Made In USA

Actual Size: 21-1/2 x 23-5/16 x 7/8
  • SKU: ZLP21H23E1-6PK
  • 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?

$69.86

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The Glasfloss MERV 10 Z-Line 21-1/2×23-5/16×1 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 86 Reviews
5 ★
94% 
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Filter Reviews:
JM
03/08/2024
Jimmy M.
United States United States
I recommend this product

Air Filters

Excellent quality, service and the delivery was promptly. The price was reasonable compared to other vendors. Thank you for your service.

LD
03/08/2024
Larry D.
United States United States
I recommend this product

Bryant HVAC filters

product as described, fits nicely

DT
12/31/2023
Dexter T.
United States United States
I recommend this product

Service was a breeze

I wish all my online orders from other vendors were as prompt and quick as the service I received from you.

AC
11/22/2023
Albert C.
United States United States
I recommend this product

Excellent filters

I change filters every 2 - 3 months and these filters are great !!

MV
10/13/2023
Michael V. Corcione
United States United States
I recommend this product

A/C filters

Great I always use air filter unlimited when I order my A/C filters online