Replacement Pre-Filters 4027168 for the Santa Fe Compact or Compact 2 Dehumidifier. These pre-filters are original equipment products and are intended to be used in conjunction with either a MERV 11 or Odor Eliminator filter sold separately. Sold in a pack of 4 filters. Filter size is 9 x 11.5 x 1/4. Part Number 4027168 9 x 11.5 x .25"