Pack of 2 replacement air filters furnaces, HVAC, and AC systems Filters out and captures dust, pollen, pet dander, smoke, and other particles Engineered melt-blown design with a 3-layer composition and beverage board frame Nanofiber technology captures ultrafine pollutants and offers additional reincement Rated at MERV 13 efficiency optimal air Caliber Measures 20 inches long, 20 inches tall, and 5 inches thick For best results, replace the filter every 3 months Color: White Dimensions (L x W x H): 20.00 x 5.00 x 25.00 inches
