Lock Cylinder

A professional from Bethesda, MD says:
I have a client who would like to replace the lock cylinder on his Andersen
hinged, inswing patio door pictured here.
User submitted a photo of a door handle.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
Take a look at our 40-123 and see if this matches the dimensions of your existing key cylinder.
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