Filter-Monster - Replacement HEPA Filter Value Pack - 2 Pre-Filters and 1 True HEPA Filter - Compatible with Hunter HP400 Air Purifier and H-HF400-VP Filter

Compatibility: Compatible with Hunter H-HF400-VP filter and Hunter HP400 air purifier. Air Quality Improvement: True HEPA filtration is rated H13 and removes up to 99.97% of airborne particles as small as 0.3 microns in size including dust, smoke, pollen, pet hair and dander, and more. Replacement Quantity: Each package contains one (1) replacement True HEPA filter and two (2) replacement carbon pre-filters. Maintenance: Recommended to change this filter once every twelve (12) months under normal conditions, and more often under harsh air conditions. Approximate Measurements: 6 3/4 x 6 3/4 x 8 inches.