Viskon-Aire VIS865000 Series 55 Intake Filters - 20” x 20”

• Self-sealing gasket.
• High efficiency.
• Internal steel frame.
• PBT32 Tackifier.
• Long service life.
• No fiber breakoff.
• No flutter.
• Fits frames fast without adaptors or sharp edges.
• U.L. classified.
• 20” x 20”
• Box of 24