Marvin Window block and tackle replacement
A home owner from Buffalo says:
September 16, 2016
Attached picture is for a Marvin #232023 window 23X26 size. I have one replacement part with a 22H on it. It measures 23" end to end just the metal part. I need three more units with the clips for the top and the black piece that runs inside the channel connected to the rope that window clip fits in.
Paul from SWISCO responded:
September 20, 2016
Check out our Series 751 balance, this looks like a match.