Description
Nordic Pure 20x25x5LXREDM13-4 Lennox X6673_X6675 Replacement MERV 13 Air Filters 4 Pack – 20x25x5 delivers high-efficiency air filtration for residential HVAC systems. Specifically engineered as a replacement for Lennox X6673 and X6675 filters, these MERV 13-rated pleated filters capture a broad range of airborne contaminants to enhance indoor air quality and system performance.
Features:
- MERV 13 pleated synthetic media for superior filtration
- Heavy-duty, moisture resistant beverage board frame
- Metal mesh support grid bonded to pleats for structural strength
- Designed to fit Lennox systems requiring 5″ deep filters
Benefits:
- Captures pollen, dust mites, mold spores, pet dander, and fine particles
- Improves air quality for allergy and asthma sufferers
- Promotes energy-efficient HVAC operation
- Helps extend the life of your heating and cooling systems
Technical Specifications:
- Model: 20x25x5LXREDM13-4
- Nominal Size: 20″ x 25″ x 5″
- Actual Size: Approximately 19.75″ x 24.75″ x 4.38″
- MERV Rating: 13
- MPR Equivalent: 2200–2400
- Filter Media: Pleated MERV 13 synthetic media
- Quantity: 4 Pack
Important Note: Almost all furnace filters have an actual size different from the nominal size printed on the filter. Nordic Pure 20x25x5 Lennox Replacement MERV 13 filters have an actual depth of 4 3/8″. Please measure your current filter or housing to ensure proper fit before ordering.






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