Need replacement for Andersen tandem window lock 135143 R 2

A quick learner from USA says:
I have an Anderson 48"x84" bay window , I need tandem lock part number #135143 R 2 the overall tandem lock length is 29" Do you have this replacement tandem lock? What is the part number? How much does it cost?
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Tom from SWISCO responded:
Start by looking at our 38-147 and 38-148 and let me know if these match your Andersen tandem lock.
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