Actual Size: 15 5/8 inches (length) x 24 1/8 inches (width) x 4 7/8 inches (depth) Effective Filtration: MERV 13 synthetic media (comparable with MPR 1500 - 1900 & FPR 10) protects homes from the smallest particulates (.03 - 1 microns) High-Quality Contruction: Features an electrostatically charged, pleated design that captures more and prolongs the products lifespan by 3 times that of fiberglass models USA Made: Proudly made in the USA from eco-friendly materials

This Tier1 16X25X5 air filter is rated at MERV 13 to capture particulates 1 microns or smaller in size. Replacement for: Ultravation. efficient filter media that captures small dust particulates before they can collect on your coils.