Filterbuy 18x20x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
Filterbuy 18x20x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack
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Filterbuy 18x20x4 Air Filter MERV 11 Allergy Defense, Pleated HVAC AC Furnace Filter Replacement, 6-Pack

|7 ratings

Key item features

  • UNIVERSAL COMPATIBILITY: 18x20x4 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 19.50" x 3.63")
  • 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 8 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
Current price is Now $178.98
You save $53.69
was $232.67
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Subscribe, Your usuals, on your schedule, Save time and stay stocked!, $178.98
Your usuals, on your schedule
Save time and stay stocked!
One-time purchase $178.98

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Arrives by Tue, Jul 28
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Sold and shipped by FilterbuyPro Seller
4.589602024384633 stars out of 5, based on 4347 seller reviews(4.6)
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4 out of 5 stars
stars
7 ratings4 reviews
How item rating is calculated
  1. 5 stars43% (3)
  2. 4 stars29% (2)
  3. 3 stars14% (1)
  4. 2 stars14% (1)
  5. 1 star0% (0)
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Showing 1-3 of 4 reviews

Jun 9, 2018
Bryce R.
5 out of 5 stars review

Odd sizes

I have an odd sizes filter, they made my size, it was a perfect fit and on top of that fast service at the best price. Thanks

Review from Filterbuy
Helpful?3AX7UREWEUM9197734231
Nov 3, 2020
rick o.
4 out of 5 stars review

Not exactly what i need

Not exactly what i need in size but close. I know i can customize but cost is too high. Why cant you sell odd dimensions filters like trane 17.7x20x4.7 Compete with big dogs who are trying to monopolize odd sizes!!!!

Review from Filterbuy
Helpful?3AX7UREWEUM9197734231
Nov 17, 2023
Walmart customer
3 out of 5 stars review

fit was ok, so the

fit was ok, so the size was correct. There wasn't a whole lot of pleats in the filter (compared to a 3M design).

Review from Filterbuy
Helpful?3AX7UREWEUM9197734231