The Flanders E-Z Flow Heavy Duty Air Filter is a standard grade air 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. A tough metal media retainer is adhered to the frame on both upstream and downstream sides for extra filter strength. For peak equipment protection and energy efficiency, these air filters should be changed monthly in periods of high use.

• Pack of 12 disposable UL Class II rated air filters designed for protection of furnace and central air units
• MERV 4 rating: Removes household dust, pollen, and lint
• Continuous chipboard design guards against corner separation while the double-sided metal media retainer adds to the filter strength
• Each filter maintains efficiency for up to 30 days
• Compatible with HVAC systems requiring filters sized 24" x 36" x 1"

Pack of 12 disposable UL Class II rated air filters designed for protection of furnace and central air unitsFlanders Corporation