Dave Sr. from SWISCO responded:
June 22, 2015
Your operator look like it is made of a heavy duty brass-like material. We carry a standard type like our 39-044 and 39-045, but I'm not sure if they'll work. I wonder if it would be better to use the Truth casement operators. They are a little heavier than the standard ones. Take a look at our 39-138 and 39-139, which have a 9-1/2" arm. Also take a look at our 39-141 and 39-142 with an 11" arm. Could you get these to work?
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