Unique values from dynamic list

[ddice]

Hi all,

I am having a hard time finding a way to pull the unique results of an array based on certain search criteria. That's confusing so let me associate it with a picture (see attachment)

I want to only find the unique lots associated with the product ID. Below is where I am at with my formula. It is pulling all of the lots associated with that product ID, not just the unique values.

=IFERROR(INDEX(Table1[[Lot_Code]:[Lot_Code]],AGGREGATE(15,3,(Table1[[Product_ID]:[Product_ID]]=$F9)/(Table1[[Product_ID]:[Product_ID]]=$F9) _
*ROW(Table1[[Product_ID]:[Product_ID]])-ROW(Table1[[#Headers],[Product_ID]]),COLUMNS($G$7:G8))),"")