Nordic Pure 21x23x1ExactCustomM10+C-6 Merv 10 Carbon Filter

Product Description

The NORDIC PURE 21x23x1ExactCustomM10+C-6 is a custom-cut, electrostatically charged pleated air filter rated MERV 10 with an integrated carbon layer. It is designed for residential and light-commercial HVAC systems, including forced-air furnaces and central air conditioning units. The filter captures airborne particulates as small as 3 microns and uses the carbon media layer to help reduce common household odors. Each filter measures an actual 21 x 23 x 0.75 inches. This is a custom-fabricated size, built to exact dimensions, and is installed by HVAC technicians and knowledgeable homeowners performing routine filter maintenance.

This filter is suited for residential forced-air heating and cooling systems where a non-standard duct or filter cabinet opening requires an exact-fit custom size. The nominal size is 21x23x1 with an actual size of 21 x 23 x 0.75 inches. It ships in a 6-pack, making it practical for scheduled filter change intervals of 30 to 90 days depending on indoor air quality conditions, occupancy, and the presence of pets or allergen sources. It is not a standard off-the-shelf size and is manufactured to order.

Key Features

• MERV 10 rating captures over 85% of airborne particles between 3 and 10 microns, including lint, dust, pollen, pet dander, and mold spores
• Integrated carbon layer helps reduce common household odors passing through the HVAC system
• Electrostatically charged synthetic media attracts and retains fine particulates without significantly restricting airflow
• Reinforced 2-part frame construction provides added rigidity for consistent fit and performance over the filter life
• Custom-fabricated to exact dimensions - actual size is 21 x 23 x 0.75 inches, not a nominal approximation
• Made in the USA

Compatibility

Designed as a custom exact-size replacement filter for residential and light-commercial forced-air furnace and air conditioning systems that require a 21 x 23 x 0.75-inch actual-dimension filter opening. Because this is a custom-fabricated size, verify the actual dimensions of the existing filter slot before ordering. Custom sizes are not eligible for return.

Installation Notes

Power down the HVAC system at the thermostat or disconnect before opening the filter cabinet and removing the old filter. Confirm airflow direction arrows on the new filter frame align with the direction of air movement toward the blower. Custom-cut frames may incorporate tape reinforcement at the seams, which is normal for fabricated sizes. Replace every 30 to 90 days based on system runtime and indoor air quality conditions.