FYI: The 84-TL20255G is the successor to the 84-25050-01 Media Air Cleaner.

The TrueLine™ MERV 13 media air cleaner installs in the return air duct of almost any forced air heating or cooling system. As air flows through the system, the home air cleaner traps particles as small as 1.0 micron, including pollen, dust, and dander. Not only will the air cleaner improve your home's HVAC air filtration, but it will also reduce allergens, improve respiratory health, remove odors, enhance sleep quality and much more.