Copying rows if criteria is met but only specific cells of the row

[wlknspc7]

Sub copyT()
Dim wrfrom As Worksheet
Dim wrto As Worksheet
Dim lastrw As Long
Dim i As Integer
Dim rng As Range


Set wrfrom = Sheet1
Set wrto = Sheet5

lastrw = wrfrom.Cells(Rows.Count, 1).End(xlUp).Row


wrfrom.Select
For i = 2 To lastrw
Set rng = Union(Range(Cells(i, 1), Cells(i, 6)), Cells(i, 8), Range(Cells(i, 14), Cells(i, 15)))
If wrfrom.Cells(i, 13) = "T" Then
rng.Copy wrto.Range("A" & Rows.Count).End(xlUp).Offset(1, 0)
End If
End Sub

Hello!

I'm trying to make a new macro for my workbook. My goal is if there is a criteria met "T" in the 13th column of my worksheet then copy the row but only specific cells of the row (1-6th, 8th and 14-15th) to a different workbook.
I created an Union range with the cells I need but sometimes when I run my macro it doesn't do anything and sometimes it does everything properly.

It's not necesarry to start the pasting from the first blank row because my wrto sheet where I'm pasting is only a header formatted as a table, so the pasting will always start from the 4th row but I couldn't figure out how to do it properly

Any ideas how to make this macro more stable and working?

Thanks in advance

 

[mumps]

What is the name of the destination workbook including the extension (xlsx, xlsm)?

 

[Fluff]

Maybe use

If UCase(Trim(wrfrom.Cells(i, 13))) = "T" Then