Balance identification

A home owner from Corona ca says:
I need to replace channel balance for a sun air window brand the number stumped in the part is 2720 P the metal part is 28 inches long as well i need a window lock and 2 top casing. Can you help me please.
User submitted photos of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
I believe we can, yes! For the window lock, see our 90-005, which has a black color option. The top sash guide looks like our 18-036, but I would recommend comparing your dimensions to ours to confirm. Please also note that you will need to drill the top hole for the frame screw. Finally, regarding the balance, look at our S350-28. I would also recommend the 2720 option.
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