19-7/8x21-1/2x1 Air Filter Glasfloss ZL Series MERV 10 – 12-Pack
Best high-efficiency filter for homeowners seeking improved indoor air quality.
Elevate your indoor air quality with the Glasfloss ZL Series MERV 10 air filters, conveniently packaged in a 12-count box. These filters are expertly designed to capture common allergens and dust, promoting a cleaner and healthier environment in your home or business. Offering MERV 10 filtration, they enhance air purification without increasing airflow resistance, providing a noticeable upgrade from standard MERV 8 filters. Constructed with a robust, moisture-resistant frame and 100% synthetic media, these filters actively resist mold growth and ensure long-lasting durability. Engineered for simple installation and removal, these USA-made filters are recommended for replacement every three months.
$117.60
Owner Satisfaction
4.6
/ 5
Category Rank
17
/ 340
#17 in Air Conditioner Filters
Price vs Category Average
+36%
Above average
Pack Quantity
12
Who it's for
- Allergy sufferers seeking cleaner indoor air quality
- Budget-conscious homeowners wanting long-term supply convenience
- HVAC owners prioritizing system efficiency and airflow
Who should skip it
- Busy homeowners preferring infrequent maintenance schedules
- Health-focused users needing protection against microscopic pathogens
- Apartment dwellers lacking dedicated storage space
Performance breakdown
Filtration Efficiency
MERV 10 rating effectively captures common household allergens and fine dust.
Airflow Performance
Synthetic media design maintains strong airflow without straining your HVAC system.
Build Durability
Moisture-resistant frame and thermally bonded fibers ensure long-lasting structural integrity.
Installation Ease
Standardized sizing and rigid construction make for a quick, hassle-free swap.
Mold Resistance
Synthetic materials actively prevent microbial growth in humid operating environments.
Bulk Value
Twelve-pack configuration provides a full year of reliable, high-quality air filtration.
Key Specs
Pack Quantity
12
Filter Material
Synthetic
Washable/Reusable
No
Length
21.5 inches
Width
19.875 inches
Depth
0.875 inches
Filter Life
3 months
Filtration Type
Allergen Reduction, Dust Filtration
Features
- Captures allergens and dust effectively
- MERV 10 filtration for improved air quality
- Heavy-duty, moisture-resistant frame
- Synthetic fibers resist mold and moisture
- Thermally bonded for enhanced durability
- Easy installation and removal
- Made in the USA
- Eco-friendly design with recycled content
What customers say
Customers highly value the Glasfloss ZL Series MERV 10 filters for achieving an optimal balance between effective air filtration and maintaining strong airflow. The MERV 10 rating is considered ideal for homes, capturing common allergens without straining HVAC systems. Positive sentiment strongly centers on the exceptional value provided by the bulk 12 pack, ensuring cost savings and convenience. Reviewers consistently praise the sturdy construction; the pleats remain firm throughout use, unlike flimsy alternatives. Users report a noticeable improvement in indoor air quality after installation. Overall, these filters are seen as a high quality, reliable, and economical choice, delivering professional performance at a consumer friendly price point.
Know before you buy
These filters are designed to be replaced every three months to maintain optimal airflow and air quality. Depending on your home's environment—such as the presence of pets or high dust levels—you may want to check them sooner to ensure they aren't clogged.
No, these are disposable filters. Once they reach the end of their three-month lifespan, they should be replaced with a fresh filter to ensure your HVAC system continues to run efficiently.
A MERV 10 filter provides a higher level of filtration than a standard MERV 8, meaning it is more effective at capturing smaller particles like pollen, mold spores, and fine dust. It offers a noticeable improvement in air quality without significantly restricting the airflow of your HVAC system.
These filters have an actual size of 19-7/8 x 21-1/2 x 1 inches, which corresponds to a nominal size of 20 x 22 x 1 inches. Always measure your current filter or the filter slot in your HVAC unit to ensure these dimensions are a match before purchasing.
Yes, these filters are constructed with a moisture-resistant frame and synthetic media that actively resists mold growth. This makes them a reliable choice for environments where humidity might otherwise compromise the integrity of a standard cardboard-framed filter.
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$118