Skip to content
Free Local Pickup ● Ship to Your Hometown Store
Pro & Contractor Accounts ● Apply for Net Terms
100,000+ Products ● Trusted American Hardware Brands
FAQ Shipping & Returns Order Lookup Contact Account
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter
Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter

Filtrete 20 in. W X 36 in. H X 1 in. 1000 MPR Pleated Allergen Air Filter

Upgrade your home's air filtration with the Filtrete 20 in. W x 36 in. H x 1 in. 1000 MPR Pleated Allergen Air Filter. Built for everyday indoor air quality, this filter leverages…

Filtrete MPN AL43-4
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $12.99, average $14.99
In-Store Exclusive

This one's worth the trip to the store.

Brands like Weber, Milwaukee, Yeti, and DeWalt restrict where their products can be sold online — and for good reason. In-store buyers get authentic products, full manufacturer warranty, and access to pricing that simply isn't allowed to be advertised on the web.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Upgrade your home's air filtration with the Filtrete 20 in. W x 36 in. H x 1 in. 1000 MPR Pleated Allergen Air Filter. Built for everyday indoor air quality, this filter leverages Filtrete’s 1000 MPR rating to target a broad range of common pollutants, helping you breathe easier in spaces where pollen, mold spores, and smoke particles are a concern.

What makes this Filtrete filter stand out

  • 1000 MPR performance delivers enhanced filtration for household allergens, including pollen and mold spores, as well as smoke particles, helping reduce irritants in the breathing zone.
  • Pleated design increases surface area for more efficient capture of particles without sacrificing airflow, often translating to longer filter life between replacements.
  • Fit with standard dimensions nominal size 20x36x1 fits most HVAC filter slots; actual size is 19-5/8 x 35-5/8 x 3/4, which is typical for precise fit and seal integrity.
  • Comprehensive allergen reduction targets dust/lint, pollen, mold spores, and smoke particles, helping improve overall indoor air quality.
  • Single-pack convenience comes ready to install, making it simple to maintain cleaner air in your home.

Why it matters for your space

For households seeking clearer air, this Filtrete filter prioritizes the pollutants most people notice: seasonal pollen, mold spores in humid environments, and smoke particles from nearby sources or cooking. By incorporating this filter into your HVAC system, you can experience steadier airflow and a noticeable reduction in dusty surfaces and lingering irritants in rooms where you spend the most time.

Fit, use, and practical tips

Designed to fit typical 20x36x1 filter slots, but aware of size variations with installations, confirm the nominal size while considering the actual measurements (19-5/8 x 35-5/8 x 3/4) for a secure seal. When you notice a drop in airflow or an increase in dust accumulation, it’s a good cue to replace the filter to maintain filtration efficiency and comfort.

Whether you’re prioritizing relief from seasonal allergies, reducing smoke particles from air exposure, or simply pursuing cleaner air in high-traffic areas, the Filtrete 1000 MPR Pleated Allergen Air Filter provides targeted filtration without complicating your routine. Invest in a healthier indoor environment with a filter that’s purpose-built for real-world allergens and common pollutants.

The Details Specifications

Brand Filtrete
SKU 4012484
UPC 051141959603
Unit 0
Case Pack Quantity 4 per case
Retail Unit Quantity 4
Unit of Measure 0 0
Dimensions (L × W × H) 5 × 21 × 37
Weight 5 lbs
Cubic Feet 0.48714 ft³
Country of Origin MEXICO
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
Free Local Pickup Ship to your hometown store
Pro & Gov Accounts Net terms · tax-exempt
Ships Nationwide From our distribution network
Independent Network Real hardware stores
$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

Find a local store →
Mon–Fri 6–5 PST
Independent hardware retailer? Join the network →
About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare