18x18x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters

18x18x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters

Marsoni

M251S

$79.99

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

18x18x 1/2 Half Inch Ring Panel MERV 13 Furnace Air FiltersActual Size: 17 1 2 x 17 1 2 x 1 2 (17. 5 x 17. 5 x 0. 5) Captures large airborne particles like household dust, allergens, mold spores, pet dander and smoke particles. Ideal for customers with apartments, window units, campers, and RVs. Antimicrobial high capacity, polyester material with an added layer of smooth poly blend electrostatic filter media For filter installation the air enters thru the fuzzy, high loft side and exits out the thinner,

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Arrow is AIRFLOW direction, not UP direction. So installation direction might mean arrow of your Purolator filter should be down (true for glove box installs) even if arrow on old filter is up (if it was an UP indication). I wish they mentioned this in product listing, on box, or on side of filter like most brands. Luckily, telephone customer service was super responsive. Otherwise, product is correct size, appears sturdily made.

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Reviewed in the United States on May 30, 2025

Verified Purchase

Raquel Santos

Grantham, US

★★★★★ 5

Great item

Size: 2.0L

This fit my car perfectly! It was was easy to install as well. Great price as well.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on March 25, 2026