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The NORDIC PURE 21_1/2x23_3/8x1ExactCustomM7+C-6 is a custom-cut, pleated carbon AC furnace air filter rated MERV 7 with activated carbon media. It is built to the exact dimensions entered at the time of order: 21.5 x 23.38 x 0.75 inches actual size. The filter captures airborne particles in the 3-10 micron range while the carbon layer helps reduce common household odors. It is designed for residential forced-air HVAC systems and is installed by HVAC technicians or experienced homeowners comfortable with filter service. This listing covers a 6-pack quantity.
This filter is suited for residential furnaces and central air conditioning systems where a non-standard opening requires a custom-dimensioned filter. Because the filter is hand-made to the dimensions specified at the time of order, it is critical to measure the existing filter with a tape measure before purchasing. The actual width and length of the existing filter should be within 0.125 inches of the ordered size. If a standard nominal size falls within that tolerance, a stock filter may be substituted. This filter fits filter slots requiring an approximate 21.5 x 23.38 x 0.75 inch actual footprint.
Designed as a custom-dimensioned replacement for residential forced-air furnace and central AC filter slots requiring an actual size of 21.5 x 23.38 x 0.75 inches. Measure the existing filter before ordering; custom sizes are specific to the dimensions submitted at purchase.
Power down or set the thermostat to the off position before removing the existing filter to prevent unfiltered air from circulating through the air handler. Note the airflow direction arrow on the filter frame and orient the replacement filter so the arrow points toward the blower. For 1-inch filters in typical residential applications, manufacturers generally recommend inspection every 30-90 days and replacement based on observed loading. Because this is a non-returnable custom item, confirm the opening measurement before installation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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