Truth Split Arm / Dyad Operator - Casement window

A quick learner from Minneapolis, MN says:
June 4, 2019
I have found a couple of similar ones on your site but the measurements do not match. From the middle of the gear to the connector of the outer metal piece is 5". The outer metal piece is 4" from the rivet to the outer hole and has 20810 stamped on it. On the back side of the base unit in raised numbers I see RH 45136. US PAT 4505601. I believe our windows are Marvin.

I need to replace it as the gears have worn out and it will no longer close the casement window.
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Bob from SWISCO responded:
June 6, 2019

See our 39-315 and 39-316 Operators. Look over the dimensions and see if these are what you need.
Truth Dyad Operator
Truth Dyad Operator
39-315
$24.40
Truth Dyad Operator
Truth Dyad Operator
39-316
$24.40
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