18 x 18 x 1 (Merv 10)

Filters out >90% of pollen, dust, and pet dander with MERV 10 rated air filter technology. 100% synthetic electrostatic media, strong kraft board frame, water-resistant adhesive, and metal support grid for durability and moisture resistance. Low initial resistance to air flow keeps your HVAC system running efficiently. Proudly made in the USA. Perfect for home air conditioning units, furnace filters, and central air systems. Replace your 18x18x1 air filter regularly for optimal indoor air quality and allergen reduction.