21x21x1 Exact MERV 14 Plus Carbon AC Furnace Filters

21x21x1 Exact MERV 14 Plus Carbon AC Furnace Filters

Marsoni

M251S

$188.10

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

21x21x1 Exact MERV 14 Plus Carbon AC Furnace FiltersActual Size: 21 x 21 x 3 4 (21 x 21 x 0. 75) Airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, smoke, and bacteria are captured and helps eliminate unwanted odors and other contaminants. Ideal for customers looking for superior filtration but needing an odor control element Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 14 is equivalent to MPR 2800 Made in the USA. Nordic

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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When buying accessories for my eufy robot vac, I originally got my hands on some dupe accessories because they were cheaper. However- the mop cloths did not work well. The cheap construction of the dupes caused threads to constantly come out and get tangled, causing the robot to error out. I got these OEM ones and they work MUCH better. In this case it's best to buy the OEM parts even though they are more expensive!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on December 29, 2025

Verified Purchase

A R

Cuba, US

★★★★★ 5

Perfect

Size: normal

Needed more sets because I like to wash the pad after each use. Quality is very good.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 4, 2026