Filter King 11.5x11.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 11.5 x 11.5 x .75)

FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 11.5" x 11.5" x 1" - Actual Size: 11.5" x 11.5" x .75" MADE IN USA: Fully manufactured in the United States. Made from the highest quality materials and construction. (EPA Establishment Number: 103501-FL-1) MAX PERFORMANCE: Our filters can last up to 90 DAYS before needing replacement. We do recommend to change your home air filter every 30 - 90 days for 1 inch filters. This will help maintain the longevity of the intended application like A/C and heaters