Improve your home's indoor air quality while protecting your HVAC equipment with the 20x20x1 Aerostar Air Filter. Designed to fit most residential furnaces, air handlers, and central air conditioning systems that use a nominal 20" x 20" x 1" filter, this high-quality pleated filter helps capture airborne contaminants while maintaining consistent airflow.
Aerostar filters are manufactured with electrostatically charged synthetic media that attracts and traps dust, pollen, lint, mold spores, pet dander, and other airborne particles before they circulate throughout your home. Available in multiple MERV ratings, you can choose the level of filtration that best fits your household's needs, from everyday HVAC protection to enhanced allergen reduction.
Key Features
- Fits most HVAC systems requiring a nominal 20" x 20" x 1" air filter.
- Available in multiple MERV ratings for customized filtration performance.
- Electrostatically charged synthetic media captures airborne particles efficiently.
- Pleated construction provides increased surface area for improved dust-holding capacity.
- Helps maintain proper airflow while protecting HVAC components.
- Moisture-resistant frame for long-lasting durability.
- Simple, quick replacement with no tools required.
Applications
The Aerostar 20x20x1 air filter is ideal for residential forced-air heating and cooling systems, including:
- Gas furnaces
- Electric furnaces
- Central air conditioning systems
- Heat pumps
- Residential air handlers
- Return air grilles that accept a 20x20x1 filter
Specifications
- Nominal Size: 20" x 20" x 1"
- Actual Size: 19-3/4" x 19-3/4" x 3/4"
- Filter Type: Pleated disposable air filter
- Media: Electrostatically charged synthetic media
- Frame: Moisture-resistant beverage board
- Application: Residential HVAC systems
- Recommended Replacement: Every 60–90 days under normal operating conditions
Compare Filtration Levels
Not sure which air filter is right for your home or business? Compare MERV ratings below to see which airborne contaminants each filtration level is designed to capture.
MERV 6
✓ Lint
✓ Dust
Best For:
Basic HVAC Protection
Captures particles 3.0–10.0 microns
Comparable to MPR 300
Most Popular
MERV 8
✓ Lint
✓ Dust
✓ Mold Spores
✓ Dust Mites
Best For:
Most Homes
Captures particles 3.0–10.0 microns
Comparable to MPR 600 & FPR 5
MERV 11
✓ Lint
✓ Dust
✓ Mold Spores
✓ Dust Mites
✓ Pollen
✓ Pet Dander
Best For:
Pets & Allergies
Captures particles 1.0–3.0 microns
Comparable to MPR 1000-1200 & FPR 7
MERV 11 + Carbon
✓ MERV 11 Protection
✓ Household Odors
✓ Cooking Smells
✓ Pet Odors
Best For:
Odor Control
Helps reduce unwanted household odors
Best Filtration
MERV 13
✓ Lint
✓ Dust
✓ Mold Spores
✓ Dust Mites
✓ Pollen
✓ Pet Dander
✓ Smoke & Smog
✓ Bacteria Carriers
Best For:
Maximum Residential Filtration
Captures particles 0.3–1.0 microns
High-Efficiency Residential Filtration
Understanding MERV Ratings
The Minimum Efficiency Reporting Value (MERV) measures an air filter's ability to capture airborne particles. Higher MERV ratings remove smaller contaminants but can also increase airflow resistance. Selecting the proper MERV rating helps balance indoor air quality with HVAC system performance.
MERV 8: Excellent for everyday residential filtration and HVAC protection.
MERV 11: Ideal for homes with pets, allergies, or moderate air quality concerns.
MERV 13: Premium filtration for capturing microscopic particles. Suitable only for HVAC systems designed to handle higher-efficiency filters. HVAC professionals generally recommend confirming system compatibility before using MERV 13 in a 1-inch filter.
Why Replace Your Air Filter Regularly?
Replacing your air filter on schedule helps maintain efficient airflow, reduces strain on your HVAC equipment, lowers energy consumption, and improves indoor air quality. Under normal household conditions, inspect your filter monthly and replace it every 60 to 90 days. Homes with pets, smokers, or high dust levels may benefit from more frequent replacement.
Frequently Asked Questions
What are the actual dimensions of this filter?
The actual dimensions are approximately 19-3/4" x 19-3/4" x 3/4", which is standard for most nominal 20" x 20" x 1" HVAC filters.
How often should I replace this filter?
Most homeowners should replace the filter every 60 to 90 days. If you have pets, allergies, smokers, or heavy HVAC usage, inspect it monthly and replace it as needed.
Which MERV rating should I choose?
Choose MERV 8 for everyday HVAC protection and airflow, MERV 11 for improved allergen and pet dander filtration, or MERV 13 for maximum residential particle capture if your HVAC system is designed to support it.
Will this filter fit my HVAC system?
This filter is designed for systems that require a nominal 20" x 20" x 1" filter. Always verify the size printed on your existing filter or consult your HVAC equipment manual before ordering.
What direction should the airflow arrow face?
Install the filter with the airflow arrow pointing toward the furnace or air handler blower. Proper orientation ensures optimal filtration performance and protects your HVAC system.
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