Filterbuy 18x24x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack
Filterbuy 18x24x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack
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Filterbuy 18x24x1 Air Filter MERV 13 Smoke Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack

|9,775 ratings

Key item features

  • Universal HVAC Compatibility: These 18x24x1 replacement air filters (actual size: 17.38" x 23.38" x 0.75") are designed for furnaces, air conditioners, or heat pumps, enhancing system efficiency and supporting a healthy lifestyle.
  • Advanced MERV 13 Filtration: Featuring MERV 13 synthetic media, comparable to MPR 1900 & FPR 10, these filters capture 98% of dust, bacteria, smoke, and other microscopic particles without restricting airflow.
  • Durable Pleated Design: Electrostatically charged media with 16 pleats per foot traps more particles and offers a lifespan three times longer than fiberglass models, requiring replacement every 90 days for optimal performance.
  • Superior Structural Construction: Industrial-grade beverage board frames with dual wire backing provide enhanced durability, prevent warping, and resist extreme temperatures up to 200 degrees Fahrenheit, outperforming traditional cardboard designs.
  • Domestically Manufactured Materials: Built with recyclable materials and proudly manufactured 100% in the USA, ensuring dependable indoor air quality and an eco-friendly alternative.
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Customer ratings & reviews

4.7 out of 5 stars
stars
9,775 ratings3,398 reviews
How item rating is calculated
  1. 5 stars85% (8,263)
  2. 4 stars7% (698)
  3. 3 stars3% (272)
  4. 2 stars1% (137)
  5. 1 star4% (405)
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Showing 1-3 of 3,398 reviews

Jun 11, 2026
Reviewer name: Leo
Top Reviewer
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Product fits my ac perfect. by the way my ac was installed in 1996

Helpful?5VGBWZQMY5AG1568879522
Dec 1, 2025
Reviewer name: WalmartCustomer
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good quality free shipping

Incentivized Review
Helpful?5VGBWZQMY5AG1568879522
Sep 4, 2026
Reviewer name: Customer
5 out of 5 stars
5 out of 5 stars review

I like everything about getting these filters!

The company is great, their responsive and fast, their website help me with all of the details so that I bought the right filter, I get them in the mail, they're made in the USA, and I can consistently get the same filters with the same rating and actually trust them that it's what they say it is. This is not true anywhere else.

Review from Filterbuy
Helpful?5VGBWZQMY5AG1568879522
Current price is $18.33$18.33/in
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