Nordic Pure 21x23_1/2x1CustomM12+C-6 Merv 12 Carbon Filter 6pk

Product Description

The NORDIC PURE 21x23_1/2x1CustomM12+C-6 is a custom-cut, MERV 12 Plus Carbon pleated air filter supplied in a pack of six. Nominal size is 21 x 23-1/2 x 1 inches, with an actual size of 20 x 23.13 x 0.75 inches. The MERV 12 rating captures over 90 percent of airborne particles between 3 and 10 microns, and 80 to 90 percent of particles between 1 and 3 microns. The activated carbon layer adds odor-reduction capability beyond standard particulate filtration. These filters are hand-fabricated to exact dimensions and are intended for installation in residential or light-commercial forced-air HVAC systems by HVAC technicians or experienced installers.

These custom pleated carbon filters fit air handlers, gas furnaces, and central AC systems where standard nominal sizes do not match the actual filter slot dimensions. Because each filter is manufactured to the exact measurements entered at the time of order, they are suited for non-standard or irregularly sized filter cavities. The 1-inch profile fits shallow filter tracks common in older residential furnaces and some air handler returns. The six-pack quantity supports scheduled filter changes every 30 to 90 days as recommended for 1-inch filters in typical residential environments. Filters are made in the USA.

Key Features

• MERV 12 Plus Carbon filtration captures particles from 1 to 10 microns including lint, dust, pollen, pet dander, mold spores, smoke, bacteria, and viruses, with added activated carbon for odor reduction
• Custom-fabricated to the exact nominal dimensions ordered, built from 1-inch filter frames cut or combined as needed and secured with tape where required
• Reinforced 2-part frame construction provides added rigidity and supports consistent airflow across the filter face
• High-efficiency MERV 12 rating with low airflow resistance helps maintain system efficiency and reduces strain on the blower
• Pack of 6 supports a full seasonal replacement cycle at the recommended 30-to-90-day change interval
• Made in the USA

Compatibility

Designed as a custom OEM-style replacement for residential and light-commercial forced-air furnace and air conditioning systems requiring a 21 x 23-1/2 x 1 inch nominal filter slot. Measure the actual filter cavity before ordering; the actual filter size is 20 x 23.13 x 0.75 inches. A custom size should be ordered only when the actual slot dimensions fall within 1/8 inch of these measurements.

Installation Notes

Installation is performed by a licensed HVAC technician or qualified service professional. Power down the air handler or furnace at the disconnect or breaker before removing the old filter and inserting the new one. Verify airflow direction arrows on the filter frame align with the direction of airflow toward the blower. Because these filters are custom-made to order, confirm exact slot measurements with a tape measure before placing an order, as custom sizes are non-returnable.