Nordic Pure 20x25x5 Replacement MERV 13 Filter - Carbon 2 Pack

Our review of the Nordic Pure 20x25x5 (actual 19 3/4 x 24 3/4 x 4 3/8) replacement filter finds it a pragmatic choice for homeowners who need reliable allergen and odor control without fuss. The single biggest reason to buy is the combination of a true MERV 13 rated media and an activated carbon panel, which together capture fine dust, pet dander and reduce household odors. The review focuses on fit, filtration performance and value based on customer feedback and the product's stated specs.

Key Features

• Actual size guidance: Measured at 19 3/4 x 24 3/4 x 4 3/8, the filter makes it clear how to match it to your return box for a correct fit.
• Lennox replacement fit: Made to replace Lennox X6673 and X6675 media filters so users with those models can expect interchangeability.
• MERV 13 filtration: The filter provides high-efficiency particle removal equivalent to MPR 2200-2400, which helps reduce airborne allergens in living spaces.
• Activated carbon layer: A flat carbon panel is included to help attract and reduce common household odors and gaseous vapors.
• Made in the USA: Domestic manufacture can be reassuring for buyers concerned with consistent build and sourcing.
• Two-pack value: Sold as a 2 pack, it offers a straightforward way to keep a spare filter on hand for routine replacement.

Who It's For

This filter is well suited for homeowners or renters who run central HVAC systems and need stronger particle removal than basic fiberglass filters. It is a good fit for households with pets, allergy sufferers, or those who want both particulate filtration and some odor control from a single media filter.

It is less appropriate for systems that require a strict 5 in nominal thickness where an exact manufacturer nominal dimension is enforced; always measure your filter slot and compare it to the listed actual size before ordering. Also, users who require HEPA-level filtration or specialized chemical gas removal should look for purpose-built alternatives.

Pros & Cons

Pros

• High-efficiency MERV 13 media captures fine dust and allergens effectively.
• Included activated carbon panel improves household odor control compared with standard filters.
• Actual size is specified so buyers can verify fit and avoid returns.
• Good value as a 2 pack for routine maintenance cycles.

Cons

• Actual thickness is 4 3/8 in rather than a full 5 in, so some users report fit or build expectations differ from nominal size.
• Carbon layer offers limited odor control compared to larger or dedicated gas-phase filters.

Specifications

Our Verdict

The Nordic Pure 20x25x5 MERV 13 with carbon is a practical, cost-conscious choice for homeowners who want strong particle capture plus modest odor reduction. It delivers reliable filtration, clear actual sizing to ensure fit, and good value as a 2 pack; just confirm your filter slot dimensions first if you expect a full 5 in thickness.

Frequently Asked Questions

Will this fit a slot labeled 20 x 25 x 5?
Measure your return box and compare to the listed actual size 19 3/4 x 24 3/4 x 4 3/8 in to ensure proper fit.

Does the carbon layer remove strong chemical smells?
The flat carbon panel helps reduce common household odors and vapors but is not a substitute for dedicated gas-phase filters for heavy chemical removal.

How often should it be replaced?
Replacement frequency depends on use and indoor air quality, but routine replacement every 3 months is common for MERV 13 media in residential settings.