21 1/2x23 3/8x1 Exact MERV 12 AC Furnace Filters

21 1/2x23 3/8x1 Exact MERV 12 AC Furnace Filters

Marsoni

M251S

$83.92

Get it in 3 business days with 1 day shipping. Friday, May 29

21 1/2x23 3/8x1 Exact MERV 12 AC Furnace FiltersActual Size: 21 1 2 x 23 3 8 x 3 4 (21. 5 x 23. 38 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores and other contaminants. Ideal for high efficiency air filtration and will help those with moderate allergies and asthma. Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 12 is equivalent to MPR 1500 1900 Made in the USA. Nordic

Easy Shipping

Quick Dispatch:

Your 21 1/2x23 3/8x1 Exact MERV 12 AC Furnace Filters orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your 21 1/2x23 3/8x1 Exact MERV 12 AC Furnace Filters ships.

Need Help?
Questions about 21 1/2x23 3/8x1 Exact MERV 12 AC Furnace Filters, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for 21 1/2x23 3/8x1 Exact MERV 12 AC Furnace Filters in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

Got this to replace cabin air filter on 2020 Honda Civic Sport, as it said it was a direct fit… It does fit but not perfectly! Holding it next to the filter you can see the size difference, with the original being slightly longer. I noticed a whistling sound from the AC at full blast right after install. I believe this noise is caused by the small gap left in the retainer box with the slightly smaller filter. Luckily it is not incredibly loud, but it’s still there. The quality of filtration seems to be much better than stock filter, but the fitment not exact for vehicles mentioned above.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 17, 2026

Verified Purchase

Bon43

Dallas, US

★★★★★ 5

Awesome

Easy to install. Fit appropriately. Value for the money for sure.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on September 26, 2025

Verified Purchase

tprizzle

New York, US

★★★★★ 5

Will continue to repurchase

I have purchased this product multiple times for my Honda CRV. Works great and is actually pretty easy to install. I will definitely repurchase once the time comes to replace again. Great value for the price compared to at the dealership

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on June 1, 2025

Verified Purchase

Amazon Customer

Waukegan, US

★★★★★ 5

Good engine filter at a fair price

Worked for my 2018 Honda CR-V. Arrived quickly. Make sure you check the shape of your filter before ordering. I originally ordered a rectangular filter that Amazon said would work for my car. I was able to return it and order the correct one.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 1, 2026