Remember the goal is to delete the non-matching rows; AutoFilter is only one tool to help achieve the goal. If AutoFilter does not meet your needs, pick another method. Consider:
Sub AllBut()
Dim rTable As Range, r As Range
Dim rDelete As Range
Set rTable = Selection
Set rDelete = Nothing
For Each r In rTable.Columns(7).Cells
v = r.Value
If v <> "101" And v <> "102" And v <> "103" Then
If rDelete Is Nothing Then
Set rDelete = r
Else
Set rDelete = Union(r, rDelete)
End If
End If
Next
If Not rDelete Is Nothing Then rDelete.EntireRow.Delete
End Sub
Here we select the block of data to be processed (not including the header row). The macro sweeps down column #7 of that block and deletes any row that does not match the criteria.
All that will remain are the 101’s, the 102’s, and the 103’s.