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Why Walmart Pre-Owned?

for additional details & specific condition qualifications.

Walmart Pre-Owned allows you to find previously owned, well-cared-for items from Walmart’s trusted & performance-managed sellers. Shopping Pre-Owned allows you to bring home the best-quality picks at even lower prices, in addition to extending the life of an item & reducing waste. Find your favorites & shop a range of conditions in every category.

Each Pre-Owned item listed comes from Walmart’s trusted performance-managed sellers, to ensure you get quality items.

Save even more on top brands & your most-loved items.

Don’t love it? Most items offer a 30-day* free return policy, for added peace of mind.

Shopping Pre-Owned helps in extending the life of an item & reducing waste.

 here

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Make these frames your own

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New! Style your frames with prescription or premium lenses for the perfect blend of fashion and function.

How do you want your frames?

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Related items to consider

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here

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Price Match Policy

Prices, terms, and availability may vary online, in stores, and in-app. Items ordered online may be available for pick up at store, shipping, or delivery. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold online by Walmart may be eligible for price match. See our

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Check with your vet before you order

Make sure you have approval from your vet to avoid a cancellation of your order.

Learn More

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You get 30 days free! Choose a plan at checkout.

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I want shipping & delivery savings with

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Products related to this item

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Reviews summary

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Frames only

Lenses as shown

Custom lenses

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https://www.walmart.com/?ref=404-redirect

Go to homepage

Try searching or go to  the homepage.

We couldn’t find this page

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Highly rated by customers

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Save up to 40% on additional pairs

Terms & conditions

Purchase one complete pair of eyeglasses (frame and prescription lenses) and get 40% off additional pairs. Offer valid July 6–September 1, 2026, while supplies last. No rain checks. Additional pairs must be purchased for the same patient, on the same day, in the same transaction, and must be of equal or lesser value than the highest-priced pair. Exclusions apply, including prescription sunglasses, Ray-Ban Meta, Oakley Meta, and Nuance Audio. OR Purchase a complete pair of prescription sunglasses and get 35% off each additional lower-priced complete pair of prescription glasses. Discount applies to the lowest-priced pairs. Offers cannot be combined with other promotions and do not apply to insurance purchases, managed care, third-party payor programs, or state and federal healthcare programs. Valid prescription required. Eye exam not included

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Products you may also like

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Members save up to 15% when subscribing to items

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Sell on Walmart

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Select the box to claim the offer. Get Walmart Cash when you receive your items.

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Specs

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Filterbuy 18x18x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack

18x18x1 (actual size: 17.75" x 17.75" x 0.75") for furnace, AC, heat pump.

Universal HVAC Fit

MERV 8 synthetic media captures 90% of dust without restricting air flow.

Advanced MERV 8 Filtering

Lasts 3x longer than fiberglass; replace every 90 days.

Extended Filter Lifespan

Durable frames resist warping, moisture, and high temperatures.

Robust Frame Durability

Easy-to-understand arrows simplify correct airflow direction and filter placement.

Effortless Installation Setup

Sustainable Materials Choice

<ul>  <li>UNIVERSAL COMPATIBILITY: 18x18x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 17.75" x 17.75" x 0.75")</li>  <li>MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 &amp; FPR 5) that captures 90% of dust without restricting air flow</li>  <li>LONG-LASTING FILTRATION: Electrostatically charged media with 14 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for optimal performance)</li>  <li>SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures</li>  <li>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</li> </ul>

Air filter size

Minimum efficiency reporting values (merv)

Contaminants removed

Brand

Features

Microparticle performance rating

Thickness

Rec. use

Dimensions

Count 

The Filterbuy replacement air filter 18x18x1 (actual size: 17.75" x 17.75" x 0.75") ensures that your furnace, air conditioner, heat pump, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 8 synthetic media (comparable with Clean Living Dust Defense MPR 700 &amp; FPR 5) is recommended in most scenarios with its capability to trap 90% of dust particles while protecting your home or business from lint, pollen, mold, dander, and other forms of debris without impacting air flow. High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and prolongs the products lifespan by three times that of fiberglass models (replace every 90 days for best results). Plus, our industrial grade beverage board frames are paired with dual wire backings that significantly outperform traditional cardboard compositions by improving structural integrity with their ability to endure temperatures up to 200 degrees Fahrenheit and withstand exposure to moisture. Installation is also made simple with the addition of easy-to-understand arrows that help identify the direction of air flow and subsequently the way the filter needs to be placed. To top it off, all our components are 100% manufactured within the United States and designed with recyclable materials, providing an eco-friendly alternative to enhancing your air quality.

Material

Product net content parent

Model

Filterbuy 18x18x1 Air Filters MERV 8 for HVAC AC Furnace

title_shipToHome_date_free_delivery

The Filterbuy replacement air filter 18x18x1 (actual size: 17.75" x 17.75" x 0.75") ensures that your furnace, air conditioner, heat pump, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 8 synthetic media (comparable with Clean Living Dust Defense MPR 700 & FPR 5) is recommended in most scenarios with its capability to trap 90% of dust particles while protecting your home or business from lint, pollen, mold, dander, and other forms of debris without impacting air flow.

High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and prolongs the products lifespan by three times that of fiberglass models (replace every 90 days for best results). Plus, our industrial grade beverage board frames are paired with dual wire backings that significantly outperform traditional cardboard compositions by improving structural integrity with their ability to endure temperatures up to 200 degrees Fahrenheit and withstand exposure to moisture.

Installation is also made simple with the addition of easy-to-understand arrows that help identify the direction of air flow and subsequently the way the filter needs to be placed. To top it off, all our components are 100% manufactured within the United States and designed with recyclable materials, providing an eco-friendly alternative to enhancing your air quality.

Filterbuy 18x18x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 1-Pack

Key item features

Specs

Filterbuy 18x18x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack $34.96

Filterbuy 18x18x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack