Casement crank assembly

A home owner from Lewes, DE says:
Hi.
I am looking for 3 left hinged cranks and 4 right hinged cranks as shown in photos.
Thanks!
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Casey from SWISCO responded:

Hello,

Take a look and compare the specifications of the 39-253LB and 39-253RB operators that use the 39-529 track slider, along with the 39-545 and 39-546 brackets, to your original hardware. These operators use the 39-375 and 39-376 handle and cover kits. Thanks for posting! 

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