Need Truth Window Controller 30866

A quick learner from New York says:
Need the window controller. Made by Truth part# 30866
User submitted a photo of a window operator.
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Tom from SWISCO responded:
Thanks for posting. Please take a look at our 39-187 and 39-188, Truth Casement Operators. Compare the measurements and let us know if they differ in any way.
A quick learner from MN says:
Did either of those numbers suggested work for you? We have ordered what we thought was the same item but the smaller arm is too small. From the unit to the end of the arm completely extended it's 8.5 inches and the one we ordered is 7.5.
A quick learner from PA says:
Quick Learner, we had the same exact problem. Did you find 8.50 inch replacement?
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