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

♻️Made in USA with recyclable materials

⚙️16 pleats/ft for 3x longer life

🛡️MERV 13 filtration captures 98% dust

685.02 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

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Description

🛡️ Breathe Better, Live Smarter — Upgrade Your Air Game Today!

BUILT TO LAST - Electrostatically charged pleats trap microscopic particles and outlast fiberglass filters by 3x.
PROUDLY AMERICAN - Crafted in the USA with industrial-grade, recyclable materials trusted by millions nationwide.
ELITE AIR DEFENSE - MERV 13 synthetic media blocks germs, bacteria, and allergens for a healthier home environment.
DURABILITY MEETS DESIGN - Robust beverage board frames with dual wire backing resist warping and extreme temperatures.
UNIVERSAL FIT EFFORTLESS INSTALL - Precisely sized 19.5" x 19.5" x 0.75" filters slide in easily to fit most HVAC systems without hassle.

Filterbuy’s 20x20x1 MERV 13 air filters deliver superior smoke and allergy defense with 98% dust capture efficiency. Featuring electrostatically charged pleated media and durable dual-wire backed frames, these filters last 3x longer than standard fiberglass models. Designed for universal compatibility and made in the USA from recyclable materials, this 4-pack ensures your HVAC system runs cleaner and healthier with effortless installation.

Specifications

ASIN	B00CJZ7OXU
Air Filter Construction	Pleated
Best Sellers Rank	#9,172 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #124 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 (3,735)
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 Highlight	Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 19.50 x 0.75)
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.

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

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.

What is Desertcart? Is it safe to order from?+

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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685.02 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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