21x21x1 MERV 12 AC Furnace Filters

Marsoni

M251S

$79.21

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

21x21x1 MERV 12 AC Furnace FiltersActual Size: 20 3 4 x 20 3 4 x 3 4 (20. 75 x 20. 75 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

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All three blades worked great for my 2023 Grand Cherokee. Well worth the money! Make sure you know how to take the old blades off! I had issues with the rear blade, but finally worked it out. The rear blade is 12 inches long, but the factory blade was 10 inches, presumably to clear the roof camera. FYI the 12 inch blade works fine.

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Reviewed in the United States on April 24, 2026

Verified Purchase

Tom C.

Pawtucket, US

★★★★★ 5

Easy Install and Skip Free

Size: 19"+18"+10"(U/J Hook)

This is a good kit - the second one I bought for a different car. Wipers seem to wipe ok. That is if you first remove the little blade guards that come with each wiper, just like the ice skaters use for their Olympic level blades. And having all three blades (two front and one back) ordered specifically to fit the car, I didn't have to guess and take multiple trips to AutoZone or Advance or O'Riellys. Sometimes the reviewer bot likes to know about some specifics as well. So . . . these fight a great battle to resist rain. And with a lever inside the car, these wipers are easy to use once installed. They are really fast when they slide out of the box. Having had some cars where the wipers fell off, I can attest to the safety that any wiper gives the driver, regardless of it's durability or speed. So I look forward to the safety these wipers will afford over having metal arms scratching across the windshield like fingernails on a chalk board.

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Reviewed in the United States on February 22, 2026

Verified Purchase

scott thomas

Chelsea, US

★★★★★ 5

Quality Wipers

Size: Combo Pack (23" & 19"), Style: Top Lock Narrow

These Bosch Aerotwin wipers are a perfect fit for my 2020 Audi Q5 and work exactly as expected. Installation was quick and straightforward, and they snapped right into place with no issues. They wipe smoothly and quietly, leaving the windshield crystal clear even during heavy rain. Performance feels very close to OEM quality—no streaking, no skipping, just consistent and reliable cleaning. They also hold up well at highway speeds without lifting or making noise. Overall, a great upgrade or replacement for the Q5. Highly recommend if you want dependable, factory-style performance without paying dealership prices.

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Reviewed in the United States on May 17, 2026

Verified Purchase

Jean Paul

Los Angeles, US

★★★★★ 5

Perfect Fit for Volvo XC90

Size: Combo Pack (23" & 19"), Style: Top Lock Narrow

These Bosch Aerotwin wiper blades fit my 2021 Volvo XC90 Inscription perfectly. Installation was quick and straightforward, and they perform exceptionally well. They provide a smooth, streak-free wipe even in heavy rain, and operate quietly without chatter. The build quality feels premium and durable. Overall, a great upgrade that delivers excellent visibility and reliability in all conditions.

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Reviewed in the United States on April 11, 2026

Verified Purchase

anthony f. san felippo

Houston, US

★★★★★ 5

Great Product

Size: Combo Pack (26" & 20"), Style: Top Lock Narrow

Fits my 2022 Tesla Model S Plaid perfectly! Easy to install and cheaper than going through Tesla

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Reviewed in the United States on May 5, 2026