14" x 20" x 1", EZ Flow II Spun Fiberglass Disposable Furnace Filter, Flat Panel, No Metal Media Retainers, Up To MERV Rating 4, 30 Day Filter, Effective Against Dust/Lint.

Flanders/Precisionaire 12x20x1 Fiberglass Furnace Filters (Pack of 12)

This is a standard grade furnace filter of the same type that has been protecting furnaces and central air conditioners around the world for over 50 years. The filtering medium is continuous filament spun glass. The frame is made with one continuous piece of chipboard to guard against corner separat...

Flanders/Precisionaire 10055.011224 Fiberglass Furnace Filter (Pack of 12)

Make your jobs easier by bringing the tool to the work. Available in eight different lengths, there’s an ideal rail for every application. In addition, Guide Rails are quickly and securely connectible to allow for customized cutting lengths, plus easier transportation and storage.

14x20x1, Percisionaire Ez Flow Ii Front Panel Merv 4, 10055.011420, Pack12