Pamlico Air 12 in. W X 24 in. H X 1 in. D Fiberglass 4 MERV Air Filter is the perfect solution for improving the air quality in your home or office. This filter is designed with high-quality fiberglass material and has a MERV rating of 4, making it ideal for capturing dust, pollen, pet dander, and other airborne particles. Measuring 12 inches wide, 24 inches high, and 1 inch deep, this filter is compatible with most standard air conditioning and heating systems. Keep your air clean and fresh with the Pamlico Air 12 in. W X 24 in. H X 1 in. D Fiberglass 4 MERV Air Filter.