Power Query: How to Merge two tables without adding more rows?

Hi All,

I am attempting to Merge a second table into an existing table, using `Merge Queries`, (not Merge Queries as New) to perform a V-Lookup. 

When the VLookup is used, the 1st table does have duplicate UPC's (becuase there are different time frames in Column A).  

The Lookup Value is the UPC Column in Table1

The Table_Array is the 2nd Table.

Here's the manual VLookup code:

=VLOOKUP([@UPC],Book1!Combined[[UPC]:[NON DAIRY]],3,FALSE)

My original table has 132127 rows.

When I Merge 2 Columns from the 2nd table, using `JoinKind.LeftOuter`, I get an exact match

However, after I expand the Merge columns, it jumps up to 132,457 rows.

How to I keep the Merge from adding additional 330 rows?

**Edit: I checked for Blanks and Duplicates on the 2nd table.

let
    Source = Table.Combine({#"4 Wk Data", #"13 Wk Data", #"26 Wk Data", #"52 Wk Data", #"YTD Wk Data"}),
    #"Trimmed Text" = Table.TransformColumns(Source,{{"UPC", Text.Trim, type text}}),
    #"Merged Queries" = Table.NestedJoin(#"Trimmed Text", {"UPC"}, VLookup_Combined, {"UPC"}, "VLookup_Combined", JoinKind.LeftOuter),
    #"Expanded VLookup_Combined" = Table.ExpandTableColumn(#"Merged Queries", "VLookup_Combined", {"NON DAIRY", "BRAND"}, {"NON DAIRY", "BRAND"})
in
    #"Expanded VLookup_Combined"

If a Merge is not possible, is there another way to perform a VLookup in Power Query?