An economical disposable panel filter from AAF Flanders designed to protect residential furnaces and central air conditioners from everyday dust, lint, and large airborne particles. Built with a one-piece chipboard frame and continuous filament spun fiberglass media that self-retains without an internal wire grid.

• Nominal size: 12" x 20" x 1"
• Continuous filament spun fiberglass media adhered directly to the chipboard frame for self-retention
• One-piece environmentally friendly chipboard frame with no metal components
• Resinous bonding agent adds rigidity and resists media compression under airflow
• Light tackifier skin on the media helps grip captured dust and lint
• Designed to keep HVAC coils, blower wheels, and burners free of debris
• Initial MERV 1 rating - filtration efficiency increases as the media loads with dust

Tip: Replace every 30 days during heating and cooling season, or whenever the filter looks visibly loaded. Slide into the return-air slot with the printed airflow arrow pointing toward the blower.