Nordic Pure 21x23_1/2x1CustomM10-6 Merv 10 Filter 6 Pack

Product Description

The NORDIC PURE 21x23_1/2x1CustomM10-6 is a custom-cut, pleated MERV 10 AC furnace air filter sold in a 6-pack. It is designed for residential and light commercial HVAC systems where higher-efficiency filtration is needed without sacrificing airflow. The filter media is electrostatically charged to attract and hold airborne particles, and it will not promote the growth of bacteria or mold on the media surface. The frame is constructed from a heavy-duty, moisture-resistant beverage board. At a MERV 10 rating, this filter captures over 85% of airborne particles between 3 and 10 microns, making it effective against common allergens and contaminants.

This filter is intended for use in residential furnaces, central air conditioning systems, and light commercial air handlers where the nominal opening measures 21 x 23-1/2 x 1 inch. The actual size is 20 x 23-1/8 x 3/4 inches. It is a custom-made replacement sized to fit non-standard or specialty filter openings that standard off-the-shelf filters do not cover. MERV 10 efficiency is comparable to filters rated MPR 900 to 1000 on manufacturer-specific scales. Nordic Pure follows ASHRAE standard MERV ratings for consistent, industry-recognized efficiency benchmarks. Licensed HVAC technicians and experienced DIYers typically install this filter as part of routine preventive maintenance.

Key Features

• MERV 10 rated per ASHRAE standards, capturing over 85% of particles between 3 and 10 microns including lint, dust, pollen, pet dander, and mold spores
• Electrostatically charged pleated media attracts and holds fine airborne particles more effectively than fiberglass media
• Media will not promote the growth of bacteria or mold on the filter surface
• Reinforced 2-part beverage board frame provides moisture resistance and structural durability
• Custom-cut to exact dimensions for non-standard filter openings - nominal 21 x 23-1/2 x 1 inch, actual 20 x 23-1/8 x 3/4 inch
• Made in the USA

Compatibility

Designed as a custom OEM-style replacement for HVAC systems requiring a nominal 21 x 23-1/2 x 1 inch filter slot. Verify the actual opening dimensions against the actual size of 20 x 23-1/8 x 3/4 inches before ordering. This product is listed as a Trane replacement filter application based on supplier data.

Installation Notes

Power down or switch the HVAC system to off before removing the existing filter. Confirm airflow direction arrows on the filter frame align with the direction of airflow in the system before seating the new filter. Because this is a custom-fabricated size, measure the actual filter slot opening with a tape measure prior to ordering - custom filters are non-returnable. Nordic Pure recommends replacing MERV 10 filters every 1 to 3 months depending on occupancy, pet presence, and indoor air quality conditions; environments with pets or allergy-sensitive occupants should replace more frequently.