NaturalAire 16-1/2 in. W X 21-1/2 in. H X 1 in. D Synthetic 8 MERV Pleated Air Filter is the perfect solution for improving the air quality in your home. This high-quality filter is designed to effectively capture large and small particles, including dust, pollen, and pet dander, with its 8 MERV rating. Its synthetic material makes it durable and long-lasting, while the pleated design maximizes its surface area for optimal filtration. With a standard size of 16-1/2 in. W X 21-1/2 in. H X 1 in. D, this filter is compatible with most HVAC systems. Improve your indoor air quality and breathe easier with the NaturalAire Synthetic Air Filter.