5IA and 7IA Window balances

A contractor from Cherry Hill says:
Hello,

I am looking to replace window balances. The numbers on the metal coils are different though. 1 coil says 5IA and 1 says 7IA. can you help me identify what parts I need to replace these? thanks so much! :)
User submitted image of their window hardware.
Profile picture of Paul
Paul from SWISCO responded:
It appears you need our S140-12 Quik tilt dual coil spring system. Take a look and let us know if this works for you.
How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
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Removing a Triple Coil Window Balance
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