need replacement its for a Marvin casement

A quick learner from Bluefield WV says:
this is a truth casement operator off a marvin casement need to try and match it

11062001 1802
45251 this is the only numbers i see on it
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Casey from SWISCO responded:

Hello,

Take a look at our 39-172 operator and carefully compare the dimensions on our product page to yours. Thanks for posting!

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