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18x24x4 MERV 11 HVAC Air Filters

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As Low as:
2 Pack - $20.15 ea. Case of 6 - $16.79 ea.
18x24x4 MERV 11 HVAC Air Filters
5% OFF when you buy 2 or more packs
Always Free Shipping and Returns
Your order will ship same or next business day

As Low as $16.79 per Filter!  

18 x 24 x 4 MERV 11 HVAC Air Filters.  
Actual Dimensions: 17-3/8 x 23-3/8 x 3-3/4.   
Filtration Rating: MERV 11, FPR 7, MPR 1000.  
Protection: Smoke, Pet Dander, Pollen, Bacteria, Dust Mites, Dust, Lint, and Mold.  
The 18x24x4 MERV 11 four inch air filters are economical replacements for 3 ¾” depth 3M Filtrete MPR 1000 Micro Allergen Defense and Honeywell Allergen Plus FPR 7 filters. Our filters will outperform similar products in efficiency and provide extended optimal filter service life and performance. The MERV 11 filter is qualified for use in filtration applications for hospitals, manufacturing plants, telecom, commercial, as well as residential. The 4 inch filter apprehends a higher percentage of harmful air particles, including those which are detrimental to your lungs. It will protect your household and work space from allergy and asthma airborne irritants and ensure a clean breathing environment. Expect better service, increased convenience, and lower prices on excellent 4 inch MERV 11 filters which will improve your living environment.
• MERV 11 (Minimum Efficiency Reporting Value) based on ASHRAE Test Standard 52.2-2012
• Moisture resistant frame and fibers
• Will not generate volatile organic compounds or enable microbial growth
• Metal support grid for stability and allows 96% open face area
• Electrostatic charged media captures increased amount of tiny particles
• Maximum operating temperature up to 180ºF
• Expanded pleat dust holding capability to capture dust and contaminants
• Fully fused double wall beverage board frame for a resilient, hardy filter
• Will not warp, buckle, leak, rack under normal operating conditions
• Manufactured in the United States

Filtration Rating Definitions:
MERV = Minimum Efficiency Reporting Value. This is the industry standard rating used by ASHRAE, American Society of Heating, Refrigerating, and Air Conditioning Engineers.
MPR = Micro-Particle Performance Rating. Rating system for Filtrete filters sold in Lowes.
FPR = Filter Performance Rating. Rating system for Honeywell filters sold in Home Depot.

Exceptional Service:
We understand that customer service does not stop when you click “buy” from us. We are focused on providing the best service possible, and if an issue does come up, we have a 100% satisfaction policy, Free Return Shipping and promise to make it easy.

We have a 100% Customer Satisfaction Guaranteed Policy, and we mean it! We will happily work with you to resolve any issues that may arise, and you can count on friendly and fast service. You can return the filters within 90 days of purchase for a full refund if they do not work out with free return shipping.

2 Reviews Hide Reviews Show Reviews

  • 4
    Product is fine, Subscription is key

    Posted by Ryan on Dec 29th 2022

    The filters do what they say. They are no all glitzy or anything. Basic materials, effectively packaged for shipment and great fitment, however the key to the service is the subscription service.
    I buy these for my elderly father’s home and have it set to send every 3mo. That way I know when a new filter arrives it’s time to change it. Works great for me as a reminder.

  • 5
    Filter quality and shipping

    Posted by Ryan on Sep 29th 2022

    It arrived in a very good amount of time and was packaged such that it had no damage. So far pleased and hope the 3mo subscription option works in helping remember to replace.