30920/30905 Hunter Replacement Air Purifier Filters (Aftermarket) Aftermarket Hunter Replacement Filter Fits Hunter models 30062, 30070, 30050, 30054, 30055, 30065, 30075, 30080, 30177, and 37065. Measures approximately 10 1/2" x 13 1/2" x 3/4". Uses Electrostatically charged filter material! It removes large dust particles, lint, and hair from the dirty air. Filter two is the sub-micron filter This is an aftermarket filter.