Nordic Pure 20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 4 Pack (20x20x5HM12-4)

Nordic Pure 20x20x5HM12-4 Honeywell/Lennox Replacement MERV 12 Air Filters 4 Pack – 20x20x5 deliver advanced filtration designed specifically for Honeywell and Lennox HVAC systems. Featuring a MERV 12 rating, these filters capture finer particles such as dust, pollen, mold spores, and pet dander, improving air quality significantly while ensuring strong airflow. Built with a durable frame and reinforced pleats, this 4-pack provides reliable, long-lasting protection for your heating and cooling system, helping maintain efficiency and comfort in your home or office.

Features:

Designed to replace Honeywell and Lennox 20x20x5 filtersMERV 12 rating captures fine airborne particlesHeavy-duty, moisture-resistant beverage board frameMetal mesh grid bonded to pleats for added support and durabilitySuitable for residential HVAC systems requiring 5″ depth filters

Benefits:

Improves indoor air quality by capturing allergens and fine dustMaintains HVAC system efficiency and reduces energy costsProlongs HVAC equipment life by reducing strain on the systemRecommended replacement every 3–6 months for best resultsEnsures a proper, secure fit for Honeywell and Lennox units

Technical Specifications:

Model: 20x20x5HM12-4Nominal Size: 20″ x 20″ x 5″Actual Size: Approximately 19.63″ x 19.88″ x 4.38″MERV Rating: 12Quantity: 4 filters per pack

Important Note: Almost ALL furnace filters have a different “actual size” than the nominal size printed on the air filter. With 4″ and 5″ filters, there is often a wider variance depending on the manufacturer. Nordic Pure Honeywell Replacement MERV 12 filters are traditional 5″ filters with an actual depth of 4 3/8″. Always measure your current filter or housing to ensure the actual size matches the filter you are ordering. Correct sizing is essential for optimal HVAC system performance.