Casey from SWISCO responded:
April 6, 2017
I think we can help, but it's hard to tell what you have. Is this window tilt or non-tilt? If it's tilt, I recommend our S600-18. The Black Tip should cover your 40 pound sash. If it's non-tilt, our S500-18 would be better. I would be happy to bring in a black tip color option for the S5001-18, if need be, that way you don't need it to be custom made. Let me know.
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