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Actual Size: 17.25x35.25x1"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 17.25x35.25x1"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 17.25x35.25x1"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
At Filterbuy, we don't cut corners—we craft high-quality air filters right here in the USA and ship them to your doorstep for free. No delays, no gimmicks—just clean air, made easy. With thousands of five-star reviews and filters built for real life & every HVAC system, it's no wonder why over 4 million families trust Filterbuy.

Proudly Made In The USA

Fast, Free Shipping on Every Order

Premium Materials That Go The Distance

85,000+ 5-Star Reviews From Happy Customers

Save Up to 70% Per Filter with Packs




Measure length × width × depth with a tape measure to find the actual size.

Round up each dimension to the nearest whole number to get the nominal size. Example: 17.25x35.25x1" in → 17.25x35.25x1 nominal.

Search by nominal size on our site for the best fit.

If the filter you buy doesn't fit, we'll send you a better size.
MERV stands for Minimum Efficiency Reporting Value—but don't let the technical name fool you. It's just a way to rate how well an air filter traps stuff like dust, pollen, pet dander, and smoke. The higher the MERV number, the more particles it catches—and the cleaner your air will be.

Comparable to:FPR: 4-7
MPR: 600-1000
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Comparable to:FPR: 6-9
MPR: 1200-1550
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Comparable to:FPR: 10
MPR: 1900-2800
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Bacteria























We build every Filterbuy filter to deliver reliable 90-day performance—thanks to smart design and premium materials that do the heavy lifting. Here's what makes the difference:
More pleats = more surface area to capture dust and debris, keeping your air cleaner longer.
Pleats are magnetized to attract and trap microscopic particles—like pet dander, pollen, and smoke.
Engineered to resist warping in extreme temperatures and high humidity.

A layer of metal reinforcement keeps pleats evenly spaced and structurally sound—no sagging, even at high airflow.
Assembled with care. Built to perform. Ships fast, free, and reliably from our U.S. facilities.

Turn Off Your HVAC SystemSafety first.

Remove The Old FilterLook for the airflow arrow and make note of the direction.

Slide In Your New FilterArrow should point toward the system (same direction as before).

Turn Your System Back OnAnd enjoy the fresh, clean air.
Not all air filters are created equal. Pleated filters don't just last longer—they actually clean your air better. Here's how they stack up:

Efficiency:
High (MERV 8–13) – Traps more particles
Lifespan:
90 days – Long-lasting performance
Air Quality:
Excellent – Cleaner, healthier air
Materials:
Recyclable and durable

Efficiency:
Low (MERV 4 or less) – Misses small stuff
Lifespan:
30 days or less – Replace often
Air Quality:
Minimal – Basic protection only
Materials:
Thin, flimsy, and not recyclable
Pleated filters are a no-brainer—more protection, less hassle, and better air for your home.
Changing your filter on time keeps your HVAC system running efficiently—and helps protect your lungs from dust, allergens, and airborne irritants. Here's how often to swap it out based on your needs:

For most homes without pets or special air quality concerns. Great for general upkeep and energy efficiency.

Shedding fur, dander, and allergy triggers can build up fast. Changing your filter every two months helps keep the air fresher and symptoms at bay.

For households affected by smoke, pollution, or respiratory conditions, monthly changes ensure maximum protection.
| Nominal Size | 17.25 x 35.25 x 1 inches |
| Actual Size | 17.25 x 35.25 x 1" inches |
| Filter Type | Pleated |
| Media | Electrostatically Charged |
| Frame | Beverage Board |
| MERV Ratings Available | 8, 11, 13 |
| Lifespan | Up to 90 Days |
| Origin | Made in USA |
At FilterBuy, we understand that selecting the right air filter for your home isn't just about size—it's about ensuring your family breathes clean, healthy air while keeping your HVAC system running efficiently. Our 17.25x35.25x1 MERV 8 air filter is designed with that balance in mind, offering superior filtration without sacrificing airflow.
As experts in air quality and with over a decade of manufacturing experience, we've rigorously tested this filter to meet the highest standards. It effectively captures dust, pollen, pet dander, and mold spores—common pollutants that affect your home's air quality—while maintaining optimal airflow to protect your HVAC system.
From real-world testing in homes like yours, we've seen how the MERV 8 rating provides the perfect balance between powerful filtration and smooth system operation. This American-made filter is built to last, offering long-term reliability that helps you avoid costly repairs and reduce energy waste.
When you choose FilterBuy, you’re choosing more than just a filter—you’re selecting a solution backed by years of expertise and a relentless commitment to better indoor air quality. Our filters help protect your family, your home, and your HVAC system, all while keeping the air you breathe cleaner and fresher.
MERV 8 Filters: Perfect Balance of Efficiency & Airflow - Our MERV 8 filters effectively capture dust, pollen, pet dander, and other common pollutants, all while maintaining optimal airflow. This balance protects both your family’s health and the longevity of your HVAC system.
Improved Air Quality & Health - By reducing allergens like dust and pollen, these filters create a healthier indoor environment. Ideal for allergy sufferers, they help ensure the air your family breathes is cleaner and safer.
Cost Savings & HVAC Protection - These filters reduce strain on your HVAC system, which can help lower energy bills and prevent costly repairs. Protect your system while saving money in the long run.
Easy Maintenance - For optimal performance, check and replace your filters every 1-3 months. Keeping your HVAC system well-maintained ensures efficient air circulation and better overall performance.
American-Made Quality - Crafted in the USA, our filters are designed for durability and long-lasting performance. Trust in American-made craftsmanship to deliver reliable solutions for your home’s air quality.
Choosing the right air filter for your HVAC system goes beyond just finding the right size—it’s about understanding MERV ratings to ensure your family breathes cleaner, healthier air. MERV (Minimum Efficiency Reporting Value) measures a filter’s ability to capture particles of different sizes. The higher the MERV rating, the more effective the filter is at trapping smaller particles like dust, pollen, and pet dander, which are common indoor pollutants.
Here’s a quick breakdown of MERV ratings:
MERV 1-4: Basic filters, capture larger particles.
MERV 5-8: Ideal for filtering allergens and common pollutants.
MERV 9-12: High-efficiency filters that improve air quality.
MERV 13-16: Exceptional filters, often used in medical facilities.
Selecting the right MERV rating can make a significant difference in the quality of your indoor air. Consider your home’s specific needs to choose the best filter for your family’s health.
MERV 8 filters strike the perfect balance between filtration efficiency and airflow, making them an excellent option for many households. These filters capture a wide range of airborne particles, such as dust, pollen, mold spores, and pet dander, which significantly improves indoor air quality—especially for allergy sufferers.
In addition to cleaning your air, MERV 8 filters help maintain healthy airflow, ensuring your HVAC system runs smoothly and efficiently. By reducing strain on your system, they can extend the lifespan of your heating and cooling equipment. Regularly using MERV 8 filters also helps reduce energy consumption and save on utility bills, as your HVAC system doesn’t have to work as hard to circulate air.
Selecting the correct filter size for your HVAC system is essential for both optimal performance and air quality. To find the right size, start by checking your system’s specifications. Filter dimensions are typically listed in your HVAC system’s manual or on the existing filter.
Steps to Determine the Correct Filter Size:
Measure Your Current Filter: Use a tape measure to check the length, width, and thickness of your current filter.
Check Manufacturer Guidelines: Refer to the HVAC system’s manual for the recommended filter size.
Consider Variations: Some systems may accommodate slightly different sizes. If you're unsure, consult with a professional.
Choosing the right filter size ensures your HVAC system operates at peak efficiency and helps extend its life.
Maintaining Your Air Filter for Optimal Performance
Proper filter maintenance is just as important as selecting the right size. It directly affects the efficiency of your HVAC system and air quality. Regularly check your filter every month. If it appears dirty or clogged, it’s time to replace it.
Key Maintenance Tips:
Replace Filters: Aim to replace filters every 1-3 months, depending on usage and air quality.
Inspect Monthly: Regularly check filters, especially during high-use seasons.
Clean Vents: Dust and debris can accumulate in vents, which can reduce airflow. Regularly clean vents to maintain efficiency.
When it comes to finding high-quality, reliable air filters, FilterBuy stands out as a top choice for homeowners. Our extensive selection of filters, including the popular 17.25x35.25x1 MERV 8 filter, ensures you’ll find the right solution for your home’s needs. Our user-friendly website makes it easy to navigate and find the perfect filter for your system.
But it’s not just about great products—we’re also committed to providing exceptional customer service, fast shipping, and competitive pricing. Our customers consistently highlight the convenience and reliability of shopping with FilterBuy.
When you choose FilterBuy, you’re not just purchasing an air filter; you’re investing in cleaner air, better indoor comfort, and long-term protection for your HVAC system.

“At FilterBuy, we understand how the right air filter can transform both your home’s air quality and the efficiency of your HVAC system. Our 17.25x35.25x1 MERV 8 filters are more than just a solution—they’re a smart investment in your family’s health and the long-term performance of your system. By choosing high-quality filtration, you’re not only improving the air you breathe, but also reducing energy bills, cutting down on maintenance costs, and ensuring your home remains protected for years to come.”
At FilterBuy, we understand the importance of selecting the right air filter for both your health and your HVAC system’s efficiency. Here’s why our 17.25x35.25x1 MERV 8 filter is the smart choice:
90% of Time Spent Indoors - The EPA estimates that Americans spend about 90% of their time indoors. Source: NIEHS With the majority of our time spent inside, the air quality in your home matters more than ever. The right filter helps ensure you and your family breathe cleaner, healthier air.
Filtration Improves Indoor Air Quality - Upgrading your HVAC filtration system significantly improves indoor air quality. Source: EPA’s Guide to Air Cleaners Our MERV 8 filters effectively capture common indoor pollutants, such as dust, pollen, and pet dander, helping to improve the air you breathe.
Upgraded Filters Reduce Health Risks - According to the EPA’s Indoor AirPLUS Technical Bulletin, high-efficiency filters help remove harmful particles, reducing health risks associated with poor air quality. Source: EPA.gov In real-world scenarios, upgrading to a MERV 8 filter not only improves air quality but also reduces strain on your HVAC system—saving on energy costs and minimizing maintenance needs.
At Filterbuy, we believe the 17.25x35.25x1 MERV 8 filter is an essential investment in both your home’s air quality and the long-term efficiency of your HVAC system. Here’s why:
Balanced Performance - Our MERV 8 filter captures common airborne pollutants like dust, pollen, and pet dander while maintaining optimal airflow. This balance helps protect both your family’s health and your HVAC system.
Real-World Benefits
Improved Air Quality: Great for allergy sufferers, it helps create a healthier home environment.
HVAC Protection: Reduces strain on your HVAC system, cutting down on maintenance costs.
Energy Savings: By improving efficiency, the filter helps your system run more effectively, saving you money on energy bills.
Long-Term Value
Lower Maintenance Costs: Fewer repairs and a longer lifespan for your HVAC system.
Ongoing Savings: Reduced energy consumption means long-term savings on utility bills.
By choosing the 17.25x35.25x1 MERV 8 filter, you're making a smart, long-lasting investment in your home’s health, comfort, and efficiency.
Taking control of your home's air quality is simple with these easy steps:
Check Your Filter Size - Measure your current filter or consult your HVAC system’s manual to confirm the 17.25x35.25x1 dimensions.
Order Your MERV 8 Filter - Visit FilterBuy.com to easily order your MERV 8 filter. Enjoy fast shipping and hassle-free delivery to get your new filter quickly.
Install Your New Filter - Replace your old filter with the new MERV 8 filter, following your HVAC system’s installation instructions for a smooth and secure setup.
Schedule Regular Maintenance - Inspect your filter every 1-3 months to ensure optimal performance. Consider stocking up on replacements to stay ahead.
Enjoy Cleaner Air & Lower Bills Breathe cleaner air and enjoy a more efficient home. With your new filter, you’ll save on both energy bills and HVAC maintenance costs.
Yes, MERV 8 is an excellent choice for most residential HVAC systems. It captures dust, pollen, and pet dander while maintaining good airflow, helping to keep your HVAC system efficient and your air clean.
The ideal MERV rating depends on your needs. For most homes, MERV 8-11 offers a balanced approach to filtration and airflow. If you need higher filtration, such as for allergy relief, MERV 13 is an excellent choice.
MERV 8 is perfect for standard air quality needs. MERV 11 provides better filtration for homes with moderate air quality concerns. MERV 13 offers the highest filtration efficiency, making it ideal for homes with allergy sufferers or significant airborne pollutants.
A MERV 8 filter typically lasts 1-3 months, depending on factors like usage, air quality, and whether you have pets or smoke in the home.
Yes, very high MERV ratings (such as 16) can restrict airflow, which may put extra strain on your HVAC system, especially older models. It's best to choose a filter that balances excellent filtration with adequate airflow.
Most MERV 8 filters are disposable, though some reusable options exist. However, reusable filters typically have lower MERV ratings and may not provide the same level of filtration.
No, MERV 8 filters are typically not too restrictive for most residential HVAC systems. They provide a good balance of filtration and airflow, ensuring your system operates efficiently.
The best filter depends on your needs. For general use, MERV 8-11 is ideal for most homes. If you need superior filtration, particularly for allergy sufferers, MERV 13 is a great option.
HEPA filters offer the highest level of filtration but can restrict airflow, making them less suitable for standard HVAC systems. MERV filters, particularly those rated between MERV 8-13, provide a better balance of filtration and airflow for most residential systems.
Yes, MERV 8 filters can capture larger mold spores. However, they may not capture the smallest spores. For better mold filtration, consider a higher MERV rating (such as MERV 11 or 13).
Pleated filters are generally more effective, as they offer a larger surface area for trapping particles and tend to have higher MERV ratings, improving filtration efficiency.
Yes, most modern HVAC systems can accommodate MERV 13 filters. However, it’s important to check your system’s specifications to ensure it can handle the higher filtration without strain. Always refer to your manufacturer’s recommendations to be sure.