12x18x1 MERV 11 Tru Mini Pleat Air Filter

The Ironside 12x18x1 MERV 11 pleated air filter delivers allergy & pet defense for your home or office — engineered to keep your HVAC system running clean and your air clear.

• Captures pet dander, mold spores, and fine allergens
• True 12x18x1 fit — sized to drop straight into standard HVAC and furnace systems
• Electrostatically charged, moisture-resistant pleated media
• Made in the USA
• Replace every 30–90 days for best airflow and efficiency

Built here. Breathe better.