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18x24x6 Air Filter Glasfloss HV Series MERV 10 – Box of 4

Actual Size:
  • SKU: HVP18246
  • 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?


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Glasfloss Z-Line 18x24x6 MERV 10 HV furnace filters excel where similar HVAC filters fall short while also offering an eco-friendly design. The air filter frame is constructed of heavy-duty, moisture resistant beverage board incorporating post-consumer recycled materials making it very sturdy and easy to install and remove from your HVAC system (similar furnace filters can be difficult to install and remove if they are flimsy or have absorbed moisture). 100% synthetic fibers are used to construct the pleated air filter media that will not support microbial growth or absorb moisture. All of the components are thermally bonded together for high durability and extended reliability, making the Glasfloss Z-Line Series the preferred air filters for residential homes and commercial spaces.

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
4.8 Based on 9 Reviews
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Filter Reviews:
Jared W.
United States United States
I recommend this product

Thiccc Filters Are What I Need

My HVAC unit requires a thicker than usual air filter, that I've not been able to find in any local stores. Air Filters Unlimited has them and at a reasonable price.

Jared W.
United States United States
I recommend this product

Suits my needs great!

I used to have a static ran electric filter for my central air system and that filter stopped working (old system, furnace on its last legs) and this size filter fits in the space as the replacement. This is the least expensive option from a variety of suppliers and they've always arrived in good condition. I'm very pleased with the product and they also arrive in a nice large box. If you have small children or cats you needn't buy toys when you buy filters from Air Filters Unlimited!

Karen G.
United States United States
I recommend this product


Perfect fit and very easy to use and works awesome!!

David D.
United States United States
I recommend this product

Good Alternative to Electrostatic

After many years of listening to all the noise from our electronic air cleaner, we switched to this filter. Replacement verses cleaning may not be as “green” but it saves a lot of hassle. The 4-star rating is because the fit could be tighter so less air can slip around the filter.


Waiting for delivery!!!

Waiting for delivery!!!