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3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter
3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter

3M Filtrete 20 in. W X 20 in. H X 4 in. Polyester 12 MERV Pleated Allergen Air Filter

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Breathe cleaner air with the 3M Filtrete 20 in. W X 20 in. H X 4 in. D Polyester 12 MERV Pleated Allergen Air Filter 1 pk, designed for superior allergen capture.
3M MPN NDP02-4IN-4 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $32.99. Our online price is $36.99.
$36.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within — for same-day shipping
Cases of 4 · Order in multiples of 4

Sold by the Case · Save 15%

Take $22.20 off your case at checkout

Case of 4 · List Price $147.96
15% OFF with code at checkout $125.76
Use Code at Checkout

This product is packed and shipped from our distribution network as a complete case of 4. Apply casediscount at checkout to take 15% off your order.

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

Enhance your indoor air quality with the 3M Filtrete 20 in. W X 20 in. H X 4 in. D Polyester 12 MERV Pleated Allergen Air Filter 1 pk. Designed to effectively trap allergens and pollutants, this high-efficiency filter is your ultimate solution for a healthier home environment.

Featuring a robust 12 MERV rating, this pleated air filter captures a wide range of airborne particles, ensuring that you breathe cleaner air. From pollen and dust to smoke and bacteria, the 3M Filtrete 20 in. W X 20 in. H X 4 in. D Polyester 12 MERV Pleated Allergen Air Filter 1 pk provides comprehensive filtration for your living space.

  • Dimensions: 20 in. W X 20 in. H X 4 in. D for a perfect fit in your HVAC system.
  • Material: Durable polyester construction ensures long-lasting performance.
  • Electrostatic Design: Designed to attract and capture microscopic particles effectively.
  • Versatile Filtration: Filters viruses, smoke, and allergens, providing all-around protection.

With its cardboard frame, the 3M Filtrete 20 in. W X 20 in. H X 4 in. D Polyester 12 MERV Pleated Allergen Air Filter 1 pk is easy to install and replace. Regularly changing your air filter helps maintain optimal airflow and efficiency in your HVAC system, ultimately saving you energy costs.

Don’t compromise on air quality! Upgrade your home’s filtration system today with the 3M Filtrete 20 in. W X 20 in. H X 4 in. D Polyester 12 MERV Pleated Allergen Air Filter 1 pk and breathe easier. Order now to enjoy fresher, cleaner air!

The Details Specifications

Brand 3M
SKU 4351425
UPC 051111024447
Unit 0
Case Pack Quantity 4 per case
Retail Unit Quantity 4
Unit of Measure 0 0
Dimensions (L × W × H) 21 × 19 × 21
Weight 11 lbs
Cubic Feet 1.17779 ft³
Country of Origin USA
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.

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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.

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