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Actual Size: 16.5x21.5x3.75"

3 month filters
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Made in the USA
Ships in 24 hours
Available In MERV Rating: 8, 11, 13
Made in the USA
Ships in 24 hours
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MERV 8 | MERV 11 | MERV 13 | |
|---|---|---|---|
| Best for | Standard Residential/Commercial Healthy Families | Superior Residential/Commercial Allergy Sufferers | Optimal Residential/Commercial Hospital Grade |
| Comparable ratings | MPR 600 & FPR 5 | MPR 1000-1200 & FPR 7 | MPR 1500 - 1900 & FPR 10 |
| Filtration | Captures 90% of Airborne Particles | Captures 95% of Airborne Particles | Captures 98% of Airborne Particles |
| Dust, lint & debris | |||
| Mold, pollen | |||
| Dander, dust mites | |||
| Smoke & Smog | |||
| Bacteria | |||
| Odor, vocs |
Generally, we recommend you replace your air filters every 90 days. Find out below if you should change your filters more often.

Change your filter every
6 weeks
to ensure indoor air quality is at its best.

Change your filter every
2 months
to avoid shedding and odor buildup.

Change your filter every
2-3 months
as having clean air is even more important with children in your home.

Change your filter every
6 weeks
to ensure indoor air quality is at its best.

Change your filter every
2 months
to avoid shedding and odor buildup.

Change your filter every
2-3 months
as having clean air is even more important with children in your home.
Tired of air filters that promise clean air but clog quickly or don’t fit right? At Filterbuy.com, we manufacture our 17x22x4 HVAC and furnace filters in the USA using premium materials we’ve tested in real homes—ours included. Backed by years of experience and customer feedback, we’ve fine-tuned our filters for longer life, better airflow, and noticeably cleaner indoor air. If you're serious about air quality, you’ll feel the Filterbuy difference.
Custom 17x22x4 air filters ensure a perfect fit and strong HVAC performance.
Captures up to 90% of dust, pollen, and dander using USA-made materials.
High-MERV ratings improve air quality, backed by EPA-supported research.
Tested in real homes, designed with firsthand experience and reliability.
Fast shipping, auto-delivery, and direct-from-factory convenience.
When it comes to keeping your home’s air clean and your HVAC system running efficiently, the right filter size matters. Filterbuy’s 17x22x4 air filters are specifically engineered to deliver superior performance for residential systems requiring this unique dimension.
Crafted in the USA using high-grade synthetic media, these filters capture 90% of airborne particles like dust, pollen, pet dander, and mold—without restricting airflow. Each filter is tested for durability and fit, ensuring a seamless replacement every time. Whether you're looking to reduce allergens or extend your system’s lifespan, Filterbuy’s filters provide a smart, reliable solution.
Backed by fast shipping, flexible subscription options, and a satisfaction guarantee, buying directly from Filterbuy.com means getting factory-direct quality with personalized customer care. Experience a cleaner, healthier home with filters that are built to perform.
“We’ve designed our 17x22x4 filters based on years of hands-on testing in real homes—our own included. We know what it takes to balance airflow, filtration efficiency, and durability because we’ve built these filters not just for performance, but for people who care about air quality as much as we do.”
At Filterbuy, we don’t just make filters—we use them. Here’s why our 17x22x4 filters deliver real results, backed by science and real-world experience:
Americans spend ~90% of their time indoors.
Indoor pollutants often exceed outdoor levels.
Our filters are tested in real homes to trap allergens and irritants effectively.
MERV 13 filters remove at least 50% of particles as small as 0.3 microns.
Includes dust, pollen, smoke, bacteria, and mold spores.
We've built our filters to meet these standards—and tested them ourselves.
EPA recommends changing filters every 60–90 days.
More frequent changes are needed in homes with pets or allergies.
Our customers report improved airflow and fewer allergy symptoms.
Quick Takeaway: Filterbuy’s filters aren’t just high-performing—they’re field-tested, science-backed, and trusted by families like yours.
Choosing the right HVAC filter does more than protect your system—it improves your daily air quality. Here's what we've learned firsthand at Filterbuy:
Most homeowners underestimate the impact of air filters.
When they switch to our 17x22x4 filter, they report:
Cleaner air almost immediately
Reduced allergy symptoms
Field-Tested Design We use the same filters in our own homes, so performance and fit are non-negotiable.
Built with Your Health in Mind Every filter is made to trap more pollutants without sacrificing airflow.
Trusted Nationwide Thousands of families choose us for quality they can count on—and we don’t take that trust lightly.
If you want cleaner air, lower maintenance costs, and peace of mind, don’t settle for a generic filter. Filterbuy’s 17x22x4 model is made for people who care about their home—and what they breathe.

Follow these quick steps to upgrade your home's air quality:
Make sure your HVAC system uses a 17x22x4 filter.
A proper fit ensures maximum efficiency.
MERV 8 – Basic dust protection
MERV 11 – Great for pets and mild allergies
MERV 13 – Best for allergens and fine particles
Choose single or multi-pack.
Set up auto-delivery so you never forget to replace.
Fast shipping
Made in the USA
Direct-from-manufacturer quality
Set a reminder to keep air clean and systems running smoothly.
A 17x22x4 air filter captures airborne particles like dust, pollen, mold spores, and pet dander to improve indoor air quality and protect your HVAC system from buildup.
We recommend replacing it every 60–90 days, or more frequently if you have pets, allergies, or live in a high-dust area.
MERV 8: Basic protection from dust and lint
MERV 11: Great for homes with pets and mild allergies
MERV 13: Advanced filtration for allergens, bacteria, and smoke
No. Always measure your current filter or check your system’s manual to ensure 17x22x4 is the correct size before ordering.
Check your existing filter’s label or your HVAC/furnace manual for size specifications. The correct filter size—like 17x22x4—must match exactly to ensure proper airflow and performance. If in doubt, measure the filter slot dimensions or contact your system manufacturer.