20x20x3 MERV-13 Air Filter Replacement Compatible with Zephyr VGF Series 20x20x3 Whole Home Return Air Grille Filter. Quality Materials: Using the highest quality materials in our replacement filters, ensuring durability and long-lasting performance; Our filters are made from sturdy materials that can withstand the rigors of everyday use, providing you with reliable filtration. Easy to install: Simply remove the old filters and replace them with the new ones, ensuring a seamless transition without any hassle. Excellent MERV13 Filtration System: The filtration level of the furnace replacement filter is MERV13, they effectively filter and remove a wide range of airborne particles, including dust, smoke, pollen, pet dander and common household odors, This can lead to a healthier and more comfortable living environment for you and your family. Warm Tips: For the best performance, replace every 6 months depending on the usage and environment. Product Size: 20x20x3 Package includes: 2 x 20x20x3 MERV-13 Air Filter Replacement Disclaimer: This is not an OEM product. Any brand names or logos are the registered trademarks of their respective owners. Any use of any brand name or model designation for this product is made solely for the purpose of demonstrating compatibility.