Carrier replacement whole house filters are offered in a large number of sizes. These larger air filters feature deep-pleated media that collects up to 5 times the dust and contaminants as compared to standard 1-in. pleated filters. ***PLEASE NOTE: There are multiple versions of some nominal sizes such as 16x25x5, 20x20x5, and 20x25x5 that will have different actual dimensions. It is important to choose the correct replacement, so please pay attention to your filter's exact size and model number. There are many additional model numbers that can be searched for in our keyword search bar above. Contact U.S. Home Filter today for help finding the correct Carrier replacement whole house air filter that's right for your home.