Name: Aerostar 20x26x4 Replacement Whole House Filter for Aprilaire 213 Air Systems with Collapsible Design
Brand: AprilAire
Price: 49.99 USD
Availability: InStock

How to Measure Your Filter

Steps 1 & 2

Measuring Length and Width (L x W). (If your filter is not a square, the smallest measurement goes first).

Step 3

Measure the thickness (Depth) of your filter from front to back.

Step 4

Put Your measurements together (L x W x D).

Actual Size

A filter’s true dimensions.

Example: 19.75” x 19.75” x 1”

Nominal Size

Rounded numbers used by manufacturers.

Example 20” x 20” x 1”

View Detailed Instructions

Aerostar 20x26x4 Replacement Whole House Filter for Aprilaire 213 Air Systems with Collapsible Design

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About Aerostar 20x26x4 Replacement Whole House Filter for Aprilaire 213 Air Systems with Collapsible Design

Product: COL25S.042026-1 13 Fights: Dust & Pollen

Featuring a MERV 13 media that filters out dust, pollen, bacteria and viruses, and more particles from the air before it goes into your compatible Aprilaire Model 213 Whole House Air Purifier and Filtration system. Collapsible design sets up in seconds for easy installation and storage. Breathing healthier, cleaner air has never been easier with Aerostar Replacement Air Filters.

Air Filter Type: Electrostatically Charged Synthetic Media

FPR Rating:

Quality: Dust & Pollen

Captured Particle Size: 0.3-1.0 Microns

Material: Electrostatically Charged Synthetic Media

Capacity:

MERV Rating: 13

SKU: COL25S.042026-1

MPR Rating:

GTIN/UPC: 192212079117

Lead Time: 2 Business Day

Aftermarket Replacement Filter for Aprilaire 213
MERV 13 Efficiency Rating, Nominal Size: 20x26x4, Actual Size: 20x26x4 1/8
Fits in Air cleaner models 1210, 2210, 3210 and 4200Can be used in Air cleaner models 2200 and 2120 if cabinet is upgraded with 1213 Media Upgrade Kit
Also replaces Source-1 part S1-FM213
Aerostar MERV 13 Collapsible Replacement Filter for Aprilaire 213, 1PK

AprilAire® is a trademark owned by Research Products Corporation. The seller of this product is not affiliated with or endorsed by Research Products Corporation.

What is a MERV Rating?

MERV ratings let you know the efficiency and level of filtration that an air filter can handle under normal circumstances. The higher the MERV rating, the finer the particles are that are filtered our of the air in your home. Many air filter retailers use MERV or a similar rating to rate their air filters.

About MERV, MPR and FPR Rating

MERV Rating (Minimum Efficiency Reporting Value):

MERV Rating is the primary rating system used in the industry, both domestically and internationally. Established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers, MERV rates a filter’s ability to capture and hold particles and pollutants.

MPR (Micro-Particle Performance Rating):

MPR Rating is a rating system developed by 3M. It rates the manufacturer’s Filtrete product line and their ability to capture airborne particles smaller than 1 micron.

FPR (Filter Performance Rating):

FPR Rating is a rating system developed by The Home Depot for brands sold through their stores, including Honeywell. It utilizes a color code and number scale (4 to 10) that closely resembles the MERV rating.

Overall rating: 4.733333 / 5 from 15 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["delivery","filters"].

Review highlights

Reviews

Fast service/delivery at a competitive

"Fast service/delivery at a competitive price point."

— William S. (5/5)

"Quality seems OK, but they were the wrong size."

— Richard (2/5)

aprilaire replacement

"the Aerostar seems like it will all work as a replacement for the Aprilaire 213. Wish it had the plastic track so as to have a tighter fit into the air box."

— Kenneth H. (5/5)