Nordic Pure air filter details
Nordic Pure 20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 4 Pack (20x20x5HM10-4)
Nordic Pure 20x20x5HM10-4 Honeywell/Lennox Replacement MERV 10 Air Filters 4 Pack – 20x20x5 provide high-efficiency MERV 10 filtration designed specifically for Honeywell and Lennox units. These 5” nominal pleated air filters measure an actual depth of 4 3/8", ensuring a proper fit for your HVAC system while delivering excellent air cleaning performance.
Specifically designed replacement filters for Honeywell and Lennox 20x20x5 units
MERV 10 pleated media captures a wide range of airborne particles, comparable to MPR 900-1000
Heavy-duty, moisture resistant beverage board frame for durability
Metal mesh grid bonded to pleats for added support and filter stability
Traditional 5” nominal filter with an actual thickness of 4 3/8” for accurate sizing
Improves indoor air quality by effectively capturing dust, pollen, mold spores, and other contaminants
Maintains HVAC efficiency, helping to save on energy costs and reduce maintenance needs
Strong frame construction resists moisture and damage during use
Easy to install and replace, designed for a perfect fit in Honeywell and Lennox systems
Recommended filter replacement every 3-6 months for optimal air quality and system performance
Technical Specifications:
Model: 20x20x5HM10-4
Nominal Size: 20" x 20" x 5"
Actual Size: Approximately 19.63" x 19.88" x 4.38"
Quantity: 4 filters per pack
Important Note: Almost all furnace filters have a different actual size than the nominal size printed on the filter. Please measure your existing filter or housing to confirm the actual size before ordering. This product is designed with an actual thickness of 4 3/8” to fit Honeywell and Lennox systems that require this specification.
Product identification
- Brand: Nordic Pure
- Model / MPN: 20x20x5HM10-4
Air filter replacement: see the listed specifications for this model.




