Hello,
The base of your balance appears to be the Series 770 but the cord fitting looks like a match to the 15-170. Your balance also has a rivet at the top that is normally used to accommodate an S-clip like the 19-029 or 19-030. We can supply these balances with the necessary configuration but it will need to be a custom order.
To get started, we'll need to know the stamp code on your metal channel to compare to the strength options of the S770-14. We'll also need to know the number of balances that you need, with the minimum being two. Thank you.
We can't be sure without seeing the original pivot shoe but I can tell you that the 15-170 clip is often used with the 15-169. Take a look and compare the dimensions below to yours. If you notice any discrepancies, feel free to get back to us with photos of your original pivot shoe.
Thanks for getting back to us. What I can make out of your pivot shoe does resemble the 15-169 but you would need to remove it from the window jamb to confirm that the details and dimensions match up to the image included in our last response.
We do offer the 14B strength option for the S770-14, whcih will support a sash between 7-10 lbs. If you decide that you would like to go ahead with the custom balances as well, just let us know the number of replacements that you need.
That sounds like a plan. See our video below to help you remove the pivot shoe from the window jamb. The balance is a different type than you have but the process of removing the shoe would be the same.
It's tough for us to make out accurate dimensions from photos but I agree that your part looks like a match to the 15-169 as long as the width and thickness match the dimensions below.
Sure, you are welcome to purchase the 15-169 directly on our website or you can give our customer service team a call at (888) 991-1929 to order them over the phone. Just let us know if you have any other questions.
We're happy to help and appreciate your business!