SWISCO - The Replacement Hardware Authority

Arm length

A handy person from Memphis says:
Assuming they fit within the window, what would change if I used an operator with a 9"/11"/13.5" arm instead of a 9.5" arm?
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Tom from SWISCO responded:
The window sash would likely not be able to close or open as far, in some cases preventing the window from closing at all, depending on exactly what the difference is and what kind of sash you have. We recommend sticking with the same size you have now.
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