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Deal.ai › Filters
Filtrete
Filtrete Ultra Allergen Filter

Filtrete Ultra Allergen Filter

4.9(2,300 ratings)

Best price now

$10.00at FlairObserved at 9:47 PM

50% under what the other stores charge

Compared across 6 stores. Prices are checked against each store and labelled with when.

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Our take on the Filtrete Ultra Allergen Filter

The Filtrete Ultra Allergen Filter is a 24x14x1-inch furnace filter sold in a 14-pack. It is built for air purification, trapping fine particles such as pollen, dust and pet dander before they reach the blower. The 14-pack suits households that change filters every one to three months and want a year or more of supply on hand. At $19.97 at Lowe's as of November 7, 2026, the pack price works out to about $1.43 per filter, a low entry point for an allergen-grade filter.

Best forAllergy sufferers wanting finer particle captureHomes with pets or heavy dustBuyers who change filters every 1–3 monthsOwners of standard 24x14x1 filter slots
Pros
  • Rated 4.9 out of 5 from 2,300 ratings
  • Allergen-focused media traps pollen, dust and dander
  • 14-pack covers a full year or more of changes
  • Standard 24x14x1 size fits most furnace and return grilles
  • About $1.43 per filter at the $19.97 Lowe's price
Cons
  • Higher MERV media can restrict airflow in weak systems
  • 1-inch depth loads up faster than 4-inch media
  • 14-pack is a large commitment if the size is wrong
  • Must be checked monthly; a clogged filter strains the blower

Filtrete Ultra Allergen Filter prices at every store

  • FlairNew

    In stock

    $10.00Observed at 9:47 PM
    Visit Flair
  • WalmartNew

    In stock

    $17.31Observed at 9:47 PM
    Visit Walmart
  • Sam's ClubNew

    In stock

    $39.98Free shippingObserved at 9:47 PM
    Visit Sam's Club
  • Lowe'sNew

    Availability unknown

    $19.97Observed at 9:47 PM
    Visit Lowe's
  • BigRNew

    Availability unknown

    $19.99Observed at 9:47 PM
    Visit BigR
  • R.S. HughesNew

    Availability unknown

    $26.04Observed at 9:47 PM
    Visit R.S. Hughes

Also available at

  • eBayCheck price at eBay
  • Do it BestCheck price at Do it Best
  • eBayCheck price at eBay
  • Fleet FarmCheck price at Fleet Farm
  • RunningsCheck price at Runnings
  • WebstaurantStore.comCheck price at WebstaurantStore.com

Store links may earn us a commission. Some prices via Klarna.

Filtrete Ultra Allergen Filter price history

Lowest price we've seen: $10.00 on Nov 8 at Flair. Tracked across 11 stores since Nov 8.

What reviewers say

  • 4.9 / 52,300 ratings

Owners rate the filter very highly, with 4.9 out of 5 across 2,300 ratings. Most praise the allergen capture and the value of buying in bulk. A few note that it can load up quickly and needs frequent checking.

What people mention
  • Allergen capturePraisedOwners say dust and pollen levels drop noticeably after switching.
  • ValuePraisedBuyers like the per-filter cost of the 14-pack.
  • BuildPraisedThe frame is described as sturdy and holds its shape.
  • AirflowMixedSome say it restricts airflow on older or weaker blowers.
  • LifespanCriticisedA few owners report it loading up faster than expected in dusty homes.

Specifications

Type
Furnace
Width (")
24.0Source
Quantity (pcs)
14Source
Height (")
14.0Source
Depth (")
1.0Source

Questions and answers

Is the Filtrete Ultra Allergen Filter worth it?
For allergy-prone homes, yes. It captures fine particles well and the 14-pack brings the per-filter cost to about $1.43 at the $19.97 Lowe's price as of November 7, 2026.
What size is this filter?
It is 24 inches wide, 14 inches high and 1 inch deep, sold as a 14-pack. Measure your slot before ordering, since 1-inch filters come in many sizes.
How often should I change it?
Every one to three months is typical, and monthly in dusty homes or with pets. A 1-inch filter loads faster than a thicker 4-inch one.
Will it fit my furnace?
It fits any slot sized 24x14x1. Check the old filter's printed size or measure the opening; a filter that is too small lets air bypass the media.
Does it restrict airflow?
Allergen-grade media is denser than basic fiberglass, so airflow drops somewhat. If your blower is weak or the system ices up, step down to a lower-MERV filter.
When is it cheapest?
Bulk packs usually dip during seasonal filter sales and HVAC changeover periods. The best new price seen was $19.97 at Lowe's as of November 7, 2026.
Where is the Filtrete Ultra Allergen Filter cheapest?
At Flair, for $10.00, 50% under what the other stores charge, as of our latest check.
What do buyers say about the Filtrete Ultra Allergen Filter?
Rated 4.9 out of 5 from 2,300 ratings.
Where can I buy the Filtrete Ultra Allergen Filter?
11 stores we checked sell it, including Sam's Club, Flair, Walmart, Lowe's, BigR.

Stores we've priced the Filtrete Ultra Allergen Filter at

  • Fleet Farm deals and prices
  • Lowe's deals and prices
  • Runnings deals and prices
  • Walmart deals and prices
Functions
Air PurificationSource