Nordic Pure 20x20x4 Pleated Plus Carbon Air Filters MERV 8 - 6 Pack

Our review of the Nordic Pure 20x20x4 Pleated Plus Carbon air filters finds them best suited for homeowners and renters who want a balance of particle capture and odor control without strong airflow restriction. The pack of six provides immediate replacement supply, and the filter's construction - a MERV 8 rated media fused with a carbon layer - is the single biggest reason to buy for anyone wanting reduced dust and fresher smelling air at a reasonable cost. Measure your existing filter against the listed actual size before buying to ensure a proper fit.

Key Features

• Actual size guidance: The filter lists an actual size of 19.5 x 19.5 x 3.63 in so buyers can compare to their existing filter for correct fit.
• Nominal vs actual clarity: The product highlights the common difference between nominal and actual dimensions, which helps avoid ordering the wrong depth for furnaces and HVAC slots.
• MERV 8 filtration: The MERV 8 rating (equivalent to MPR 800) captures common household particles while maintaining acceptable airflow for most systems.
• Plus carbon layer: A fused carbon layer reduces common household odors and provides more surface area without a large increase in flow restriction.
• Made in the USA: Domestic manufacture may appeal to buyers seeking locally produced HVAC supplies and perceived quality control.

Who It's For

The Nordic Pure 20x20x4 is a good fit for homeowners with standard furnaces or air handlers who need a practical, mid-grade filter that balances dust capture and odor reduction. The six-pack format suits those who prefer to replace filters regularly without repeated ordering.

It is less appropriate for systems that require an exact 4 3/8 in actual depth or for users who need very high-efficiency filtration (such as immunocompromised households). Those users should verify actual depth needs and consider deeper or higher-MERV filters instead.

Pros & Cons

Pros

• Good balance of particle capture and airflow thanks to the MERV 8 media.
• Carbon layer helps reduce common household odors for fresher smelling air.
• Six-pack provides convenient supply and value for routine replacements.
• Clear actual size listing reduces the risk of ordering the wrong filter depth.

Cons

• Some customers report size and thickness variance, so measuring the existing filter is essential before purchase.
• Not suitable for systems that require deeper actual depths like 4 3/8 in without selecting the correct replacement model.

Specifications

Brand	Nordic Pure
Nominal size	20 x 20 x 4 in
Actual size	19.5 x 19.5 x 3.63 in
Filter efficiency	MERV 8 (equivalent to MPR 800)
Media	Pleated MERV material fused with carbon layer
Quantity	6 pack
Country of origin	Made in the USA

Our Verdict

The Nordic Pure 20x20x4 Pleated Plus Carbon filter is a sensible, value-focused option for most households that want improved dust capture and odor reduction without heavy airflow penalties. Measure your current filter and compare to the listed actual size before buying; if the noted depth matches your needs, this six-pack offers convenient replacements and solid performance for routine HVAC maintenance.

Frequently Asked Questions

Do these filters fit exactly into a 20 x 20 x 4 slot?
They are sold nominally as 20 x 20 x 4 but the actual size is 19.5 x 19.5 x 3.63 in, so you should measure your slot or existing filter to confirm fit.

What is the filtration level compared to other ratings?
The filter is rated MERV 8, which the manufacturer lists as equivalent to MPR 800 for common household particulate capture.

Is this the right choice for odor control?
The fused carbon layer provides basic odor reduction and fresher smelling air but it is not a specialized heavy-chemical adsorption filter.