E-Z Flow Air Filter, MERV 4, 23-1/2 x 23-1/2 x 1-Inch, 12-Pack

Key features

• 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 one-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 23.5" x 23.5" x 1"