The EZ Flow II is made from heavy chipboard in a one-piece design. The filtering media is continuous filament spun glass and is made to function without a retainer, by adhering the frame directly to the media which has a light skin to make it self-retaining. A resinous bonding agent provides additional rigidity and resistance to media compression. UL Classified.

This style of panel filter has protected furnaces and air conditioners around the world for over 50 years. The media is made of continuous filament spun glass. Filters should be changed monthly in periods of high use.