FILTER: This is a MERV 8 rated 5 pack Air Conditioner Filter | Size: 20" x 20" x 2" - Actual Size: 19.5" x 19.5" x 1.75" MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA Establishment Number: 103501-FL-1) MAX PERFORMANCE: Our filters can last up to 90 DAYS before needing replacement. We do recommend to change your home air filter every 30 - 90 days for 1 inch filters. This will help maintain the longevity of the intended application like A/C and heaters CAPTURE MORE: Protect your home! The pleated design captures more particles and extends lifetime of the filter. Merv Filters trap airborne particles without impacting air flow. Feel the difference in 48 hours. FAST & EASY INSTALLATION: Open, Slide and Close! A simple yet effective replacement air filter for your home. Filter King Merv 8 20x20x2 5-Pack Air Filter actual size is 19.5x19.5x1.75. Our 20x20x2 Furnace Filters are designed to last up to 90 days. These pleated 2-inch air filters are ideal for maintaining the efficiency of your heating and cooling systems. Make sure you measure your filter. The actual size of this pleated Merv 8 filter is 19-1/2 x 19-1/2 x 1-3/4