Getting Spacing In My Record

i use this set of codes,

arrModels = split(request("model"),",")
arrSerials = split(request("serialno"),",")
arrQty = split(request("qty"),",")

not sure why when i do this sql

for i = 0 to uBound(arrModels)

sql = "INSERT INTO TableInventory (SerialNumber, Qty, ModelId, Hostname, IPAddress, LocationId) VALUES ("
sql = sql & "'" & arrSerials(i) & "', " & arrQty(i) & ", " & arrModels(i) & ", '" & request("txtHostname") & "', '" & request("txtIPAddress") & "', " & request("Five") & ")"
response.write sql & "<br />"
next
response.end

i get the second serialnumber with a extra spacing infront.
can advise me? Code: