Genuine Mitsubishi MAC-2330 enzyme and MAC-3000FT-E deodourizing filters, new in unopened packaging for the following indoor units: Mitsubishi MSZ-FH09NA Mitsubishi MSZ-FH12NA Mitsubishi MSZ-FH15NA Mitsubishi MSZ-FH18NA Mitsubishi MSZ-FH18NA2 Dimensions (including frames): 22.4 x 5.2 x 0.6 cm Comes in a quantity of 2 per package. Filters should be replaced every 6 months.