Improve your indoor air quality with the 3M 2500 Premium Allergan Series Filtrete 1" Filter. The measure 16" x 20" x 1" each. The filter features exceptional filtration technology with an electrostatic feature that captures microscopic particles, ensuring cleaner air in your home. With a MERV rating of 14, this filter is perfect for those with allergies or respiratory issues. It lasts up to three months, providing long-lasting performance. Made in the United States, this Filtrete filter is compatible with most heating and cooling systems, making it a reliable choice for improving air quality.