Window balance

Hello there. I am sure we can help, but that stamp is not an identifier; it just tells us the strength of the balance. You'll need to remove the balance from the window and show us photos of the nylon attachments at both ends of the metal channel. The combination of attachments will tell us what you need.

Thanks for your photos! Based on what I see here, you have either our S380-16 or S385-16, depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match.