Nordic Pure 17_1/2x21x1ExactCustomM13+C-6 Merv 13 Filter

Product Description

The NORDIC PURE 17_1/2x21x1ExactCustomM13+C-6 is a custom-made, pleated MERV 13 plus carbon air filter designed for residential and light commercial HVAC systems including central air conditioning and forced-air furnaces. Built to exact dimensions of 17.5 x 21 x 0.75 inches, this filter combines high-efficiency mechanical filtration with an activated carbon layer to capture both particulate matter and odors. It is custom-manufactured to match non-standard filter openings and is installed by HVAC technicians or experienced homeowners who have confirmed their exact filter cavity measurements before ordering. The pack contains 6 filters.

This filter fits non-standard or custom-dimension filter slots in residential and light commercial forced-air HVAC systems where standard nominal sizes do not match the actual opening. Because this product is hand-cut to the exact dimensions entered at time of order, it is intended for installations where the actual filter cavity measures 17.5 x 21 x 0.75 inches. Installers should verify the actual opening with a tape measure before ordering, as the actual size of most filter slots differs from the nominal label by a fraction of an inch. Recommended replacement interval for 1-inch filters is every 30 to 90 days depending on air quality and household conditions.

Key Features

• MERV 13 filtration captures over 90% of airborne particles between 1 and 10 microns, and 50% to 70% of particles between 0.3 and 1 micron, including dust, pollen, pet dander, mold spores, smoke, bacteria, and viruses
• Activated carbon layer adsorbs household odors including smoke and smog-related compounds
• Custom-cut to exact dimensions of 17.5 x 21 x 0.75 inches for non-standard filter openings
• Reinforced 2-part frame construction provides structural support and consistent airflow across the filter face
• Sold in a 6-pack; each filter has a recommended service life of 30 to 90 days for 1-inch depth installations
• Made in the USA

Compatibility

Custom-made to fit HVAC filter slots with an actual opening of 17.5 x 21 x 0.75 inches. Measure the existing filter or the filter cavity with a tape measure before ordering. This custom size is not interchangeable with standard nominal-size filters.

Installation Notes

Power down or set the HVAC system to the off position before removing the existing filter. Confirm airflow direction arrows on the filter frame are oriented toward the blower, not the return air duct. Because this is a custom-cut product, verify actual cavity dimensions to within 0.125 inches before ordering. Standard industry guidance calls for replacing 1-inch filters every 30 to 90 days; environments with high dust loads, pets, or construction activity will shorten service intervals.