Fiberglass Filters
EZ Flow and EZ Flow II Continuous Filament, Spun Glass, Box Frame
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 separation. For peak equipment protection and energy efficiency, these filters should be changed monthly in periods of high use.
Heavy Duty Box Frame - Spun Glass or Synthetic Media
This is a heavy duty 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. You can rely on these filters for superior performance since they are designed for heavy work loads. A wide range of face sizes are available, plus nearly any custom size.
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