Marvin casement window operator has a broken arm

A home owner from Moultonborough NH says:
June 23, 2019
We have a Marvin casement window about 20 years old. The left operator arm is broken. See picture. Its a Entrygard Truth #20810A. Do you sell a replacement part?
Thumbnail of the uploaded file named Enrygard Truth 20810.jpg
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Dave Sr. from SWISCO responded:
June 26, 2019

Good question. Your operator shows some resemblance to our 39-031 entrygard dual arm operator. Look it over and see if this is the correct replacement. 
EntryGard Dual Arm Operator
EntryGard Dual Arm Operator
39-031
$29.70
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