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Filtrete 18 in. W X 24 in. H X 1 in. Polypropylene 700 MPR Pleated Air Filter
Filtrete 18 in. W X 24 in. H X 1 in. Polypropylene 700 MPR Pleated Air Filter
Filtrete 18 in. W X 24 in. H X 1 in. Polypropylene 700 MPR Pleated Air Filter
Filtrete 18 in. W X 24 in. H X 1 in. Polypropylene 700 MPR Pleated Air Filter
Filtrete 18 in. W X 24 in. H X 1 in. Polypropylene 700 MPR Pleated Air Filter
Filtrete 18 in. W X 24 in. H X 1 in. Polypropylene 700 MPR Pleated Air Filter
Filtrete 18 in. W X 24 in. H X 1 in. Polypropylene 700 MPR Pleated Air Filter
Filtrete 18 in. W X 24 in. H X 1 in. Polypropylene 700 MPR Pleated Air Filter

Filtrete 18 in. W X 24 in. H X 1 in. Polypropylene 700 MPR Pleated Air Filter

Breathe easier with the Filtrete 18 in. W X 24 in. H X 1 in. D Polypropylene 700 MPR Pleated Air Filter 1 pk, designed for superior air quality and filtration.
Filtrete MPN 721-4 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $11.99. Our online price is $12.99.
$12.99
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 $7.80 off your case at checkout

Case of 4 · List Price $51.96
15% OFF with code at checkout $44.16
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

Keep your indoor air clean and fresh with the Filtrete 18 in. W X 24 in. H X 1 in. D Polypropylene 700 MPR Pleated Air Filter 1 pk. This high-efficiency air filter is specially designed to capture a wide range of airborne particles, ensuring a healthier environment for you and your family.

Featuring a robust polypropylene material, this filter provides superior filtration performance. The unique pleated design increases the surface area, allowing for optimal airflow while effectively trapping pollutants. Here’s why the Filtrete 18 in. W X 24 in. H X 1 in. D Polypropylene 700 MPR Pleated Air Filter 1 pk is a must-have:

  • 700 MPR Rating: This filter efficiently captures dust, pollen, and smoke, making it an ideal choice for allergy sufferers.
  • Electrostatic Design: The electrostatic properties enhance particle capture, ensuring cleaner air.
  • Easy Installation: The standard 1-inch thickness fits most HVAC systems, making replacement a breeze.
  • Durable Construction: With a sturdy metal mesh support, this filter is built to last, providing lasting performance.

Upgrade your air quality with the Filtrete 18 in. W X 24 in. H X 1 in. D Polypropylene 700 MPR Pleated Air Filter 1 pk and breathe easier. Don't compromise on your health—order yours today and experience the difference in the air you breathe!

The Details Specifications

Brand Filtrete
SKU 4021891
UPC 076308408930
Unit 0
Case Pack Quantity 4 per case
Retail Unit Quantity 4
Unit of Measure 0 0
Dimensions (L × W × H) 5 × 19 × 25
Weight 3 lbs
Cubic Feet 0.32015 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
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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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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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