Pack of 2 replacement air filters for furnaces, HVAC, and AC systems Engineered melt-blown design with a 3-layer composition and beverage board frame Nanofiber technology and offers additional reinforcement Rated at MERV 13 efficiency for optimal air quality For best results, replace the filter every 3 months Color: Ivory Dimensions (L x W x H): 20.00 x 4.00 x 25.00 inches Weight: 1.30 pounds
