Why should I change my air filter?

To maintain a healthy lifestyle, as breathing dirty air can put you at risk to develop asthma, allergies, and other respiratory ailments. Plus, old filters can cause system defects which may lead to unwanted expenses via energy costs and repairs.

When should I change my air filter?

We generally recommend replacing your filter every 90 days to keep your system running efficiently and air clean. But this is subject to change based on filter size and variable factors for pet owners, allergy sufferers, homes with children, etc.

Will these air filters fit my system?

Most of our filters are universally compatible and will work with any furnace, air conditioner, heat pump, or HVAC system as long as you choose the proper size. But if you see a specific brand name on a listing, make sure it matches your unit model.

How many air filters do I need?

This varies for every customer depending on specific needs such as the number of vents in your home. However, our selection includes package quantities that range from 1 to 12 filters, so no matter what your situation may be, we've got you covered.

How do I change my air filter?

After finding the right size, turn off the power supply and remove the cover from your intake vent before taking out the old filter. Then just insert your new filter to match the direction of air flow, replace the cover, and turn the power back on.

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Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack)

Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack)

Product ID: 16170657

Details

Brand
Filterbuy
Compatible Devices
Air Cleaner
Filter Mounting Type
Slide In
Filter Shape
Square
Item Weight
0.27 g
MERV Rating
13

🦠MERV 13 blocks 98% dust & germs

♻️Durable, recyclable USA-made frame

🛠️Universal 20x20x1 fit

$246.33

Duties & taxes included

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Breathe smarter, live better — filter like a pro!

BUILT TO ENDURE - Robust dual wire-backed beverage board frame resists warping and extreme temperatures.
PROUDLY AMERICAN MADE - Crafted with industrial-grade recyclable materials in the USA, trusted by millions for cleaner air.
ELITE FILTRATION POWER - MERV 13 rating captures 98% of airborne particles including smoke, allergens, and bacteria.
EFFORTLESS HVAC UPGRADE - Fits all standard 20x20x1 systems for seamless replacement and enhanced airflow.
LONG LASTING PERFORMANCE - Electrostatically charged pleats trap more particles and last 3x longer than fiberglass filters.

The Filterbuy 20x20x1 Air Filter MERV 13 Smoke & Allergy Defense (4-Pack) is a high-performance HVAC filter designed to fit standard systems. Featuring a MERV 13 synthetic media, it captures 98% of dust, smoke, and allergens while maintaining optimal airflow. Its electrostatically charged pleated design lasts three times longer than traditional fiberglass filters. Constructed with a durable dual wire-backed frame made from recyclable materials, this filter is proudly manufactured in the USA to ensure superior indoor air quality and system efficiency.

Specifications

ASIN	B00CJZ7OXU
Air Filter Construction	Pleated
Best Sellers Rank	#624 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #28 in Furnace Filters
Brand Name	Filterbuy
Common Applications	Allergen Reduction, Antimicrobial, High Strength
Compatible Devices	Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump
Compatible Hvac Systems	Commercial, Industrial, Residential
Customer Reviews	4.6 4.6 out of 5 stars (3,728)
Filter Airflow Direction	Variable
Filter Mounting Type	Slide In
Filter Shape	Square
Included Components	Air Filters
Item Dimensions L x W x Thickness	19.5"L x 19.5"W x 0.75"Th
Item Type Name	Air Filter
Item Weight	0.27 g
MERV Rating	13
Manufacturer	Filterbuy
Manufacturer Part Number	AFB20x20x1M13pk4
Material Type	Aluminum, Plastic, Polypropylene
Max Temperature	200 °F
Max Velocity	615 cfm
Model Number	AFB20x20x1M13pk4
Number of Items	1
Number of Packs	1
Product Grade	Replacement Parts
UPC	717267055697
Unit Count	4 Count
Warranty Description	Defective items and products that were shipped incorrectly are subject to a refund or replacement on a case by case basis. Please contact our customer support team for more information if you experience any issues.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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Excellent communication throughout the order process. Product is perfect.

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Good experience, but the tracking updates could be better.

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