Received replacement belts today.
Item #T5-325
13mm wide
Bought them from Chris Connor
Inside Sales
Megadyne - Belt Corporation
253 Castleberry Industrial Drive
Cumming, GA 30040
Phone: +1 (770) 887-9725
Fax: +1 (770) 887-4138
They were about $8 each.
Cheers
Don