- Keep your equipment operating at its full potential with these Flanders Precisionaire Nested Glass 20" X 30" X 1" Air Filters.
- They're made of the same standard-grade materials as those protecting furnaces and central air conditioners around the world for over 50 years.
- These Flanders air filters have a filtering medium made of a continuous filament spun glass that allows for maximum airflow and features a self-retaining media that adheres directly to the frame for added resistance to wear.
- For peak equipment protection and energy efficiency, change them monthly.