Balance and top sash guide ID

A quick learner from USA says:
Please help me identify this balance and top sash guide. I think it might be a series 800.
User submitted photos of a window balance & top sash guide.
Profile picture of Paul
Paul from SWISCO responded:
Your top sash guide resembles our 18-036. Compare its dimensions to yours to confirm. As for the balance, I agree that our Series 800 is a match.
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