20X20X1 Air Filter MERV 11, 6-Month Pleated Furnace Filters for Home AC HVAC, Hi
A: We have 4 sizes available: 16x25x1 in, 20x25x1 in, 20x20x1 in, and 14x30x1 in. Suitable for most HVAC systems as long as the length, width, and height matches. Based on third-party tests. The typical lifespan of a single filter is 6 months.