Mann+Hummel 20x25x4 MERV 8 Pleated HVAC AC Furnace Air Filters. Box of 4. (Exact Size: 19.5 x 24.5 x 3.75 Inches)

• ACTUAL MEASUREMENTS: 19-1/2 x 24-1/2 x 3-3/4 | NOMINAL SIZE: 20 x 25 x 4 | Does not replace 5" or 4-3/8" depth filters.
• FILTRATION PERFORMANCE: MERV 8, MPR 600, FPR 5. Captures 90% of airborne particles without inhibiting air flow. Attracts and Blocks particles such as dust, mold spores, pollen, lint, pet dander, debris, hair.
• CLEANER AIR QUALITY: Our 20x25x4 MERV 8 air filters are made using an advanced pleated technology that offers more air coverage, enhance particle capture performance and helps extends the life of your furnace, air conditioner, or HVAC system.
• STURDY, RELIABLE CONTRUCTION: Constructed from a two-piece frame provides rigidity and durability. Electrostatically charged pleats captures more harmful particles and prolongs the products lifespan by up to 3 times over fiberglass filters. Industrial-grade dual side beverage board frames outperforms standard one-sided cardboard designs.
• MADE IN USA. Suggested to replace at least every 3 months for optimal performance. Helping to produce a cleaner, healthier living environment.

The Mann+Hummel MERV 8, MPR 600, FPR 5 rated air filters offer you the protection needed from dirty airborne particles, while improving the air quality in your residential or commercial properties. Inferior quality filters, unfiltered air, and insufficient change intervals all can potentially be detrimental to your HVAC system and having healthy air if left unaddressed. Being pro-active with changing your filters and by selecting an optimal filter for your setting can drastically reduce damage and wear to your air conditioning unit. Your AC or Furnace system cannot cool or heat your air unless it gets ample air flow. This is why frequent change intervals (industry standard of every three months) is highly recommended. With the MERV 8 extremely low pressure drop and high dust holding capacity, these filters are great for your utilization to supply your home or business with the air quality you wish for while optimizing the performance and longevity of your HVAC unit. Constructed from a two-piece frame provides rigidity and durability with double-wall thickness around the outer edge. The Mann Hummel air filter is made from a mechanical blend of synthetic fibers which achieves a MERV 8 rating per ASHRAE 52.2 Test Standard.