This replacement filter for oil micro mist separators comes with a replacement o-ring as well. It is one of three different filters that should be changed annually as part of regular maintenance of your Inovadent or Vetsonics dental cart. This filter will fit:all Inovadent and Vetsonics dental carts.
The two other filters that should be changed annually on the above carts are the MAI-54917, as well as either the MAI-54915, MAI-54918 or the MAI-54919, depending on which cart model you have. (See the respective filter descriptions to determine which is appropriate for your cart).