Item Model Number: AAS-11×11.5x1a
Brand: AAS American Filters Filter size: 11×11.5x1a Actual Size: 11 x 11.5 x .75 1-Inch Filter MERV 8 Standard Efficiency Air Filter (similar performance to MPR 600 & FPR 5): Provides basic defense against dust pollen and other airborne particles capturing up to 90% without affecting air flow. Residential / Commercial Use Made in the USA Ships in 48 hours