Hero image 0 of Filterbuy 18x30x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack, 0 of 8
Filterbuy 18x30x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
Key item features
- UNIVERSAL COMPATIBILITY: 18x30x2 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 17.50" x 29.50" x 1.75")
- MERV 11 PERFORMANCE: Protect your home or business from allergens, pets, and more with MERV 11 synthetic media (comparable with MPR 1200 & FPR 7) that captures 95% of dust without restricting air flow
- LONG-LASTING FILTRATION: Electrostatically charged media with 10 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for optimal performance)
- SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures
- MADE IN THE USA: Built with industrial-grade, recyclable materials and proudly manufactured 100% in the United States for dependable indoor air quality that is trusted by millions of homes
Specs
About this item
Product details
Specifications
Warranty
Similar items you might like
Based on what customers bought
Filterbuy 18x30x2 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $89.96
Sponsored$8996current price $89.96Filterbuy 18x30x2 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
277694.7 out of 5 Stars. 27769 reviews4.7 out of 5 starsShipping, arrives Thu, Sep 3Filterbuy 12x12x2 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $85.96
Sponsored$8596current price $85.96Filterbuy 12x12x2 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
167994.6 out of 5 Stars. 16799 reviews4.6 out of 5 starsShipping, arrives Thu, Sep 3Filterbuy 19.5x22x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack $60.98
$6098current price $60.98Filterbuy 19.5x22x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack
Filterbuy 21.5x23.5x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack $89.94
$8994current price $89.94Filterbuy 21.5x23.5x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
Filterbuy 13x21x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $89.96
$8996current price $89.96Filterbuy 13x21x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
Filterbuy 12x22x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $89.96
$8996current price $89.96Filterbuy 12x22x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
Filterbuy 17x17x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $95.96
Sponsored$9596current price $95.96Filterbuy 17x17x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
35 out of 5 Stars. 3 reviews5 out of 5 starsShipping, arrives Thu, Sep 3Filterbuy 10x25x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack $61.98
Sponsored$6198current price $61.98Filterbuy 10x25x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
209074.6 out of 5 Stars. 20907 reviews4.6 out of 5 starsShipping, arrives Thu, Sep 3Filterbuy 12x26.5x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack $90.95
$9095current price $90.95Filterbuy 12x26.5x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack
Filterbuy 16.25x21x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack $60.99
$6099current price $60.99Filterbuy 16.25x21x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack
Filterbuy 16.5x22x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack $59.97
$5997current price $59.97Filterbuy 16.5x22x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack
Filterbuy 17.25x26x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $74.96
$7496current price $74.96Filterbuy 17.25x26x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
Filterbuy 14x36x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $79.96
Sponsored$7996current price $79.96Filterbuy 14x36x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
209134.6 out of 5 Stars. 20913 reviews4.6 out of 5 starsShipping, arrives Thu, Sep 3Filterbuy 21x21x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $153.96
Sponsored$15396current price $153.96Filterbuy 21x21x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
209094.6 out of 5 Stars. 20909 reviews4.6 out of 5 starsShipping, arrives Thu, Sep 3Filterbuy 19.75x22x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $81.96
$8196current price $81.96Filterbuy 19.75x22x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
Filterbuy 17.25x23.25x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $78.96
$7896current price $78.96Filterbuy 17.25x23.25x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
Filterbuy 23.25x29.25x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack $93.99
$9399current price $93.99Filterbuy 23.25x29.25x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack
Filterbuy 17x21x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $78.96
$7896current price $78.96Filterbuy 17x21x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
Filterbuy 20x30x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack $103.98
Sponsored$10398current price $103.98Filterbuy 20x30x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
209094.6 out of 5 Stars. 20909 reviews4.6 out of 5 starsShipping, arrives Thu, Sep 3Filterbuy 28x30x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $110.96
Sponsored$11096current price $110.96Filterbuy 28x30x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
208804.6 out of 5 Stars. 20880 reviews4.6 out of 5 starsShipping, arrives Thu, Sep 3
Check out these related products
Filterbuy 14x18x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack $54.96
$5496current price $54.96Filterbuy 14x18x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
209134.6 out of 5 Stars. 20913 reviews4.6 out of 5 starsFilterbuy 18x24x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack $79.98
$7998current price $79.98Filterbuy 18x24x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
208534.6 out of 5 Stars. 20853 reviews4.6 out of 5 starsFilterbuy 16x25x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $75.96
$7596current price $75.96Filterbuy 16x25x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
209074.6 out of 5 Stars. 20907 reviews4.6 out of 5 starsFilterbuy 27x27x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack $72.98
$7298current price $72.98Filterbuy 27x27x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack
208584.6 out of 5 Stars. 20858 reviews4.6 out of 5 starsFilterbuy 18x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack $45.96
$4596current price $45.96Filterbuy 18x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
209254.6 out of 5 Stars. 20925 reviews4.6 out of 5 starsFilterbuy 8x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack $85.95
$8595current price $85.95Filterbuy 8x20x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack
12 out of 5 Stars. 1 reviews2 out of 5 starsFilterbuy 16x24x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack $81.95
$8195current price $81.95Filterbuy 16x24x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack
208604.6 out of 5 Stars. 20860 reviews4.6 out of 5 starsFilterbuy 12x27x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack $107.94
$10794current price $107.94Filterbuy 12x27x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
208704.6 out of 5 Stars. 20870 reviews4.6 out of 5 starsFilterbuy 11.5x21x4 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack $102.99
$10299current price $102.99Filterbuy 11.5x21x4 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack
Filterbuy 18x30x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $89.96
$8996current price $89.96Filterbuy 18x30x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
168434.6 out of 5 Stars. 16843 reviews4.6 out of 5 starsFilterbuy 20x25x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 12-Pack $112.92
$11292current price $112.92Filterbuy 20x25x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 12-Pack
209584.6 out of 5 Stars. 20958 reviews4.6 out of 5 starsFilterbuy 12.75x21x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack $74.97
$7497current price $74.97Filterbuy 12.75x21x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 3-Pack
Filterbuy 20x21x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack $92.95
$9295current price $92.95Filterbuy 20x21x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack
208914.6 out of 5 Stars. 20891 reviews4.6 out of 5 starsFilterbuy 12x16x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack $88.95
$8895current price $88.95Filterbuy 12x16x2 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack
208524.6 out of 5 Stars. 20852 reviews4.6 out of 5 starsFilterbuy 23.5x23.5x4 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack $107.98
$10798current price $107.98Filterbuy 23.5x23.5x4 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack
167994.6 out of 5 Stars. 16799 reviews4.6 out of 5 starsFilterbuy 14x22x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $89.96
$8996current price $89.96Filterbuy 14x22x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
43.3 out of 5 Stars. 4 reviews3.3 out of 5 starsFilterbuy 14x28x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $66.96
$6696current price $66.96Filterbuy 14x28x1 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
208654.6 out of 5 Stars. 20865 reviews4.6 out of 5 starsFilterbuy 29x30x2 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack $97.95
$9795current price $97.95Filterbuy 29x30x2 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 5-Pack
277104.7 out of 5 Stars. 27710 reviews4.7 out of 5 starsFilterbuy 13.25x13.25x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack $55.98
$5598current price $55.98Filterbuy 13.25x13.25x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 2-Pack
Filterbuy 15x20x4 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $102.96
$10296current price $102.96Filterbuy 15x20x4 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
277224.7 out of 5 Stars. 27722 reviews4.7 out of 5 stars
Customer ratings & reviews
How item rating is calculated
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |
Showing 1-3 of 7,024 reviews
Aug 20, 2026
Reviewer name: Customer
5 out of 5 stars
Affordable and effective
I love these filters. Affordable and effective. It's amazing to see how much they have collected when it's time to change them. The subscription service is great. A little extra savings and a subtle reminder that you forgot to change them. LOL. But I usually notice when it's time if I forget, I find myself sneezing and having itchy eyes in the house. Which always improves once I change them Highly recommend these and Filterbuy
Review from Filterbuy
Helpful?4IYJBZRMFJRD104947074
Jun 25, 2026
Reviewer name: Customer
5 out of 5 stars
Well Made, good price
These are very well made and much more affordable than what is sold at the local retailer. I like that I can put these on a subscription that suits my needs. I have always rented and remembering to change the filters has always been a chore. I want my new home's a/c to work well, timely filter replacement is important for that and this makes it easier to do so.
Review from Filterbuy
Helpful?4IYJBZRMFJRD104947074
Jul 7, 2026
Reviewer name: Customer
5 out of 5 stars
Great Filter
I have been using Filterbuy filters for numerous years and change them out regularly. I have always been pleased with just how good of a filter they are compared to other filters that do not even compare in quality. The price is very reasonable so that is why I always purchase 12 filters at a time and I received them within 2 days of ordering. I will continue using Filterbuy so I do not have to worry about my filters being great!
Review from Filterbuy
Helpful?4IYJBZRMFJRD104947074
Current price is USD$95.96
Price when purchased online
- Free shipping
Free 30-day returns
Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $95.96
Subscribe
$95.96
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $95.96
One-time purchase
$95.96
How do you want your item?
Ships to
Arrives by Thu, Sep 3
|
Sold and shipped by Filterbuy|Pro Seller
4.592896781354051 out of 5 stars
Free 30-day returns