need replace the crank and handle

A quick learner from 01862 says:
Is SWISCO product 39-089 good for replacing the old crank (see photo) system
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Casey from SWISCO responded:

Hello,

It looks like the orientation of the operator's arm is closer to the 39-188 , but it's tough to be sure with the screen still in place and the base of the arm obstructed by the window sill. Take a look and see if the specifications of the 39-188 match up to yours. Thank you!

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