FLANDERS® EZ FLOW® II MERV 4 ECONOMY FIBERGLASS AIR FILTER, 16X20X1 IN.

A more economical choice for fiberglass furnace air filters is EZ Flow® II. These disposable filters are designed to protect furnaces and central air units in residential and light commercial applications. Their durable construction includes:^|Filtering Media Comprised of Continuous Filament-Spun Glass|A Resinous Bonding Agent for Rigidity and Media Compression Resistance|A Resilient Hot-Melt Adhesive That Seals the Frame’s Perimeter on the Upstream and Downstream Sides^^Framing^The EZ Flow II is made to function without a retainer by adhering its frame directly to the media, which has a light skin. The frame is made from heavy chipboard in a one-piece design that eliminates corner separation.^^Tested and Highly Rated^The frame is where you’ll find these filters’ UL marking. They have been tested by Underwriters Laboratories Inc. and are classified as UL 900 Class 2 for flammability. Complementing their high UL rating is their MERV 4 rating.