Nordic Pure 20x20x5 MERV 12 Plus Carbon Furnace Filters - 4 Pack

In this review the Nordic Pure 20x20x5 MERV 12 Plus Carbon 4 pack is examined for homeowners and apartment dwellers who need higher filtration and basic odor control. The bottom line is that these filters deliver solid particle capture and noticeable smell reduction at a reasonable price, making them a practical replacement for Honeywell 20x20x4 style filters where an actual depth of 4 3/8 in fits. The review focuses on fit, filtration performance, and real-world convenience since the product pairs a MERV 12 media with an activated carbon layer for odors.

Key Features

• Actual dimensions: The filter measures 19 5/8 x 19 7/8 x 4 3/8 in so buyers can confirm fit against their existing filter before ordering.
• MERV 12 filtration: Equivalent to MPR 1500-1900, the MERV 12 media captures fine dust, pollen and many airborne particles for improved indoor air quality.
• Plus carbon layer: A bonded activated carbon layer helps attract and hold odorous gases and common household smells.
• Honeywell replacement fit: Designed to replace Honeywell 20x20x4 style filters and other filters with an actual depth of 4 3/8 in for straightforward OEM-style swaps.
• Made in the USA: Manufactured domestically, which can matter to shoppers tracking origin and quality control.

Who It's For

These filters are best for people who want a clear step up from basic fiberglass or low-MERV pleated filters and who need light odor control in kitchens or living areas. They suit owners of systems that accept a slightly under-nominal actual depth around 4 3/8 in and who prefer to buy a multi-pack to reduce replacement frequency.

Customers who need absolute tight dimensional tolerances or filters for specialized medical or laboratory use should look elsewhere; measure your existing filter first since the nominal 20 x 20 x 5 H size differs from the listed actual dimensions and not all housings accept that variance.

Pros & Cons

Pros

• Effective MERV 12 media captures finer particles than basic pleated filters, improving perceived air quality.
• Activated carbon layer reduces common household odors such as cooking smells and smoke.
• Well built and easy to install, with many customers reporting good fit and value for money.

Cons

• Actual dimensions are smaller than the nominal size, so you must measure your filter slot to ensure a proper fit.

Specifications

Brand	Nordic Pure
Nominal size	20 x 20 x 5 H
Actual size	19 5/8 x 19 7/8 x 4 3/8 in
MERV rating	MERV 12 (equivalent to MPR 1500-1900)
Filter type	Pleated plus activated carbon
Pack quantity	4 filters
Country of origin	Made in the USA

Our Verdict

The Nordic Pure 20x20x5 MERV 12 Plus Carbon 4 pack is a sensible choice for homeowners wanting better particle filtration and basic odor control without a premium price. Measure the existing filter slot first and buy when your system accepts the listed actual size; when it fits, the combination of MERV 12 media and carbon layer offers noticeable improvement in dust capture and household smells for the money.

Frequently Asked Questions

Will this fit my 20 x 20 x 5 filter slot?
Measure your current filter and compare to the actual size 19 5/8 x 19 7/8 x 4 3/8 in listed; many 5 in nominal filters have smaller actual depth.

Does the carbon layer remove all odors?
The activated carbon helps reduce many household odors and VOCs but it is not a guarantee against all smells; it performs best on common odors like cooking and smoke.

Is this compatible as a Honeywell replacement?
Yes, it is intended as a replacement for Honeywell 20x20x4 and similar filters that accept an actual depth of 4 3/8 in.