MERV 13, high degree of filtrationPleated air filter, extended surfaceHigh dust-holding capacity with low-pressure dropCaptures mold spores, pollen, pet dander, smoke and bacteriaWire supported electrostatic media with reinforced frameMoisture-resistant beverage board frameMax operating temp: 180°FUL 900 ClassifiedModel # 21213-011818Sold: Case of 12