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.

Filterbuy 14x20x4 Air Filter Merv 11 Pet And Allergy Defense

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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€ 331.00

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Description

🌬️ Elevate your air game—because your lungs deserve the best!

DURABILITY MEETS DESIGN - Robust beverage board frame with dual wire backing resists warping and extreme temps for lasting performance.
EFFORTLESS HVAC UPGRADE - Fits standard 14x20x4 slots for seamless replacement and enhanced system efficiency.
PROUDLY MADE IN THE USA - Crafted with industrial-grade recyclable materials, trusted by millions for dependable indoor air quality.
ADVANCED MERV 11 FILTRATION - Captures 95% of dust, allergens, and pet dander without choking airflow—breathe cleaner, live better.
ELECTROSTATIC PLEATED POWER - 8 pleats per foot trap microscopic particles, extending filter life 3x longer than traditional fiberglass models.

Filterbuy’s 14x20x4 MERV 11 Pet & Allergy Defense air filters deliver superior allergen and dust capture with electrostatically charged pleated media. Designed for universal HVAC compatibility, these durable, American-made filters last three times longer than fiberglass alternatives, ensuring cleaner air and enhanced system efficiency for your home or office.

Specifications

ASIN	B00CK036EA
Air Filter Construction	Pleated
Best Sellers Rank	#514 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #29 in Furnace Filters
Brand	Filterbuy
Brand Name	Filterbuy
Common Applications	Allergen Reduction, High Strength
Compatible Devices	Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump
Compatible Hvac Systems	Commercial, Industrial, Residential
Customer Reviews	4.5 out of 5 stars 19,377 Reviews
Filter Airflow Direction	Variable
Filter Mounting Type	Slide In
Filter Shape	Rectangular
Included Components	Air Filters
Item Dimensions L x W x Thickness	19.5"L x 13.5"W x 3.63"Th
Item Highlight	Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 13.50 x 19.50 x 3.63)
Item Type Name	Air Filter
Item Weight	6 pounds
MERV Rating	11
Manufacturer	Filterbuy
Manufacturer Part Number	AFB14x20x4M11pk2
Material	Aluminum, Plastic, Polypropylene
Material Type	Aluminum, Plastic, Polypropylene
Max Temperature	200 °F
Max Velocity	615 cfm
Model Number	AFB14x20x4M11pk2
Number of Items	1
Number of Packs	1
Product Dimensions	19.5"L x 13.5"W x 3.63"Th
Product Grade	Replacement Parts
UPC	717267044615
Unit Count	2 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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

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€ 331.00

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Filterbuy 14x20x4 Air Filter MERV 11 Pet & Allergy Defense (2-Pack)

Description

Specifications

Common Questions