Nordic Pure 21x21x1ExactCustomM8+C-6 Merv 8 Filter 6 Pack

Product Description

The NORDIC PURE 21x21x1ExactCustomM8+C-6 is a custom-cut, MERV 8 Plus Carbon pleated air filter sized to exact dimensions for AC and furnace applications where standard sizes do not fit. Built from electrostatically charged synthetic filter media with an integrated carbon layer, it captures airborne particulates and helps reduce common household odors in a single pass. At a nominal 21 x 21 x 1 inches with an actual size of 21 x 21 x 0.75 inches, this filter is manufactured in the USA and comes in a 6-pack. Licensed HVAC technicians and knowledgeable homeowners install this filter in residential forced-air heating and cooling systems.

This filter is designed for residential and light-commercial forced-air HVAC systems where a non-standard 21 x 21 x 1 opening requires a custom-fit solution. The MERV 8 rating makes it effective at capturing particles between 3 and 10 microns, including lint, dust, pollen, pet dander, mold spores, and baking flour. The added carbon layer addresses odor reduction, making it a practical upgrade in environments with pets, cooking activity, or other indoor odor sources. Nordic Pure recommends replacing this filter every 30 to 90 days depending on indoor and outdoor air quality conditions.

Key Features

• MERV 8 rating captures 70 to 85 percent of airborne particles between 3 and 10 microns
• Integrated carbon layer reduces common household odors in addition to particulate filtration
• Electrostatically charged synthetic media attracts and holds lint, dust, pollen, pet dander, and mold spores
• Reinforced 2-part frame construction provides added durability and supports consistent airflow
• Custom-cut to exact dimensions of 21 x 21 x 0.75 inches actual size - not eligible for returns
• Made in the USA; sold in a 6-pack

Compatibility

Custom-made to fit residential and light-commercial forced-air AC and furnace systems with a filter opening requiring an exact 21 x 21 x 1 nominal size. Measure your existing filter before ordering, as this is a non-returnable custom size.

Installation Notes

This filter is installed by HVAC technicians or the end user during routine filter maintenance. Always power down the HVAC system at the thermostat and, where applicable, at the disconnect before opening the filter access panel. Confirm the actual opening dimensions with a tape measure before installation, as the actual filter size is 21 x 21 x 0.75 inches and must seat within 0.125 inches of the opening to ensure a proper seal. Replace every 30 to 90 days based on system runtime and indoor air quality conditions.