Description
Nordic Pure 20x25x5LXREDM14-4 Lennox X6673_X6675 Replacement MERV 14 Air Filters 4 Pack – 20x25x5 delivers premium filtration performance for Lennox-compatible systems. These high-efficiency filters use MERV 14-rated media to trap even the smallest airborne particles, making them ideal for improving indoor air quality in residential or commercial environments.
Features:
- Direct replacement for Lennox X6673 and X6675 20x25x5 filters
- MERV 14 pleated filtration for superior particulate capture
- Constructed with moisture-resistant beverage board frame
- Metal mesh support grid adds strength and rigidity to pleats
- Actual depth of 4 3/8″, suitable for most traditional 5” housings
- Designed for high-performance HVAC systems
Benefits:
- Removes dust, pollen, mold spores, bacteria, smoke, and fine particles
- Improves indoor air quality and supports allergy relief
- Protects HVAC systems and reduces energy consumption
- Extends the life of heating and cooling equipment
- Best replaced every 3–6 months for optimal air quality and efficiency
Technical Specifications:
- Model: 20x25x5LXREDM14-4
- Nominal Size: 20″ x 25″ x 5″
- Actual Size: Approximately 19.75″ x 24.75″ x 4.38″
- MERV Rating: 14
- MPR Equivalent: 2800
- Quantity: 4 filters per pack
Important Note: Almost ALL furnace filters have a different actual size than the nominal size printed on the filter. Nordic Pure MERV 14 filters are traditionally sized as 5” filters with an actual depth of 4 3/8”. Please measure your existing filter or housing carefully before purchasing to ensure compatibility.





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