Harcar windows, circa 1992.

A quick learner from Oviedo Florida says:

Pic shown is 29 inches long. Have various lengths. Any help would be appreciated.Thanks, Keith 

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Emily from SWISCO responded:

Hi there!

With this combination of attachments, you could have either an S380-29 or S385-29 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. You'll also need a spring strength option of 2840.

If you have any further questions just let us know! 

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