Genuine Mitsubishi MAC-2330FT-E anti-allergy enzyme filters, new in unopened package for the following indoor units: <ul> <li>Mitsubishi MSZ-FH09NA</li> <li>Mitsubishi MSZ-FH12NA</li> <li>Mitsubishi MSZ-FH15NA</li> <li>Mitsubishi MSZ-FH18NA</li> <li>Mitsubishi MSZ-FH18NA2</li></ul> <br/>Dimensions (including frames): 22.4 x 5.2 x 0.6 cm <br/><br/> Comes in a quantity of 1 per package. Filters should be replaced every 6 months.