Window opening mechanism replacement

A handy person from Bedroom says:
I am looking for a window opening mechanism LH and RH side. Do not have a part number for the LH side
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Casey from SWISCO responded:

Hello,

Take a look at our Roto 39-341 and 39-342 window operators and see how the dimensions compare to yours. If you need new brackets to mount them to the window sash, see our 39-534 and 39-535. Thanks for posting!

39-341 : Roto Dual Arm Casement Window Operator
Roto Dual Arm Casement Window Operator
39-341
$42.24
VIEW >
39-342 : Roto Dual Arm Casement Window Operator
Roto Dual Arm Casement Window Operator
39-342
$42.24
VIEW >
39-534 : Face Mount Sash Bracket
Face Mount Sash Bracket
39-534
$8.37
VIEW >
39-535 : Face Mount Sash Bracket
Face Mount Sash Bracket
39-535
$7.75
VIEW >
How to Orient a Dual-Arm Operator
How to Orient a Dual-Arm Operator
VIDEO
WATCH >
Anatomy of a casement window
Anatomy of a casement window
VIDEO
WATCH >
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