28-3 CMC Hemmed Window Channel Balance 61-283

28-3 Number stamped on window balance. 29" Length of metal hemmed channel balance. Sash Weight 16 To 23 lbs. 1/2" x 1/2" Non-tilt window balance. 
Similar to our 60 series but with a hemmed edge.
Note: Top and bottom balance end brackets must be selected. See diagram for reference. End brackets will be attached to balances.