Nordic Pure 20x25x5LXREDM8-1 Merv 8 Air Filter 20x25x5

Product Description

The NORDIC PURE 20x25x5LXREDM8-1 is a MERV 8 rated pleated air filter designed as a direct replacement for Lennox X6673 and X6675 media air filters. The nominal size is 20x25x5 with an actual size of 19.75 x 24.75 x 4.38 inches, making it a true 4 3/8 inch depth filter. Built on a moisture-resistant beverage board frame with a metal mesh support grid bonded to the pleats, this filter captures lint, household dust, pollen, pet dander, dust mites, bacteria, and mold spores on each pass. HVAC technicians and installers specify this filter for residential forced-air heating and cooling systems that require a high-capacity media filter in a 20x25x5 housing.

This filter is suited for residential and light-commercial forced-air systems using a dedicated media filter cabinet. It is manufactured to replace Lennox X6673 and X6675 media filters and is also noted as compatible with similarly sized housings used by Honeywell, Carrier, and Bryant systems. Because actual filter dimensions vary by manufacturer, the housing or existing filter should always be measured before ordering to confirm the 19.75 x 24.75 x 4.38 inch actual size is the correct fit. Nordic Pure recommends replacement every 3 to 6 months depending on indoor air quality conditions and occupancy.

Key Features

• MERV 8 filtration rating, equivalent to MPR 800 performance
• Captures lint, dust, pollen, pet dander, dust mites, bacteria, and mold spores
• Hypoallergenic, antimicrobial, and electrostatic filter media
• Heavy-duty moisture-resistant beverage board frame with metal mesh pleat support grid
• Actual size 19.75 x 24.75 x 4.38 inches fits 20x25x5 nominal media cabinets
• Made in the USA

Compatibility

Designed as a direct replacement for Lennox X6673 and X6675 media air filters. Also noted as compatible with similarly sized 20x25x5 media filter housings used in Honeywell, Carrier, and Bryant systems. Always verify actual filter dimensions against the housing before installation.

Installation Notes

Media air filter replacement is typically performed by a licensed HVAC technician or a qualified installer familiar with forced-air system maintenance. Always shut down the air handler or furnace at the disconnect and thermostat before opening the filter cabinet. Confirm airflow direction arrow on the filter frame aligns with the direction of airflow toward the blower. Because nominal and actual filter sizes differ, measure the existing filter or housing interior before ordering to avoid misfit.