The 3" Threaded Insert Ring is compatible with any 3" threaded Arctic Spa Turbo or Tri-Face Jet. If you are converting a jet/jet-body to a threaded style, simply remove the two screws holding the Tabbed style insert ring into the jet body and remove the insert. Once the Tabbed insert is removed, place the new 3" Threaded Insert ring into the jet body and reuse the same screws to secure the insert into place.