16" Channel balance Broken

A handy person from Sebastian, FL says:

Window track 16 inch had string and small pulley broken now

Could use 1 need correct terminology

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Bob from SWISCO responded:

Thanks for posting. This is called a channel balance. Could you check the width of the metal channel? If it's 3/8" long, then take a look at our S800-17. You will need a stamp option of 16B. 

S800-17 : 17
17" Series 800 Channel Balance
S800-17
$14.37
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