Paul from SWISCO responded:
May 26, 2009
Make sure you are measuring the correct depth. I had the profile of the 18-009 photographed with dimensions so that the dimensions are more clear. The very top depth, the cap, is 11/16". Side view of 18-009
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Dave Sr. from SWISCO responded:
January 4, 2011
The top sash carriers go on both sides of the moving sash. The sash carriers hold down the balance, guiding the window sash in the main frame, keeping the sash centered. Balance cords often times break from old age.
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