Acorn Window Limiter

A professional from Toronto, ON says:
Hello, we are preparing repair specifications for a building with these window limiters but I can't find any info on them. Were they spring loaded? Are they still available or what would be a reasonable replacement?

Thanks in advance!
User submitted a photo of window hardware.
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Paul from SWISCO responded:
I'm afraid Acorn has been out of business for some time, so information on their hardware is limited. I looked through an old catalog, however, but was unable to find a limiter used with the Series 2500. The closest thing I could find was our 90-139 lock and 90-140 keeper. I cannot guarantee that this will work for you.
A professional from Toronto, ON says:
Thanks very much, that's what I suspected. I will pass along the info and get further measurements.

Thanks again!
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