FiltersFast Compatible Replacement for Carrier CNC2025 MERV 11 Air Filter 2-Pack - 20" x 25" x 5" (Actual size: 20 1/4" x 25 3/8" x 5 1/4") Carrier CNC2025 MERV 11 Air Filter 2-Pack-20x25x5 MERV Rating: MERV 11 Filter Life: 6 months (depending on usage and air quality) Made in the USA!