Milestone single hung series 1000

Question

Hope you can help. The first picture is the white snap in window glazing and is 49 5/8 in long. Can you supply me the part number so that I can order.
Now on to the channel balances.The shorter one stamped 22D USB is 23 in long. I believe this would,match up well with your 380 series. The sash weighs 15 lbs
The second one is 29 in long and has the stamp 28F USB ( The ends on both are the same and can seen in the pictures.)My concern is that the second sash weighs 42 lbs. I want to be sure to get the right one as both the 380 and 385 don't support that much weight. Can you supply me the correct part numbers so I can place an order

User submitted photos of a window balance.

Tom · Accepted Answer

Thanks for posting! Concerning the glazing, I'm afraid I can't identify it based on your picture. I will need you to remove an undamaged sample and show us a clear shot of its end profile. I will also need the end profile's measurements.

Now let's look at these balances. The first one looks like a standard order, our S380-23, like you picked out. Nothing out of the ordinary there. The other one will have to be custom made, however. I think our special 2875 option would be best; this can carry 42 through 45 pounds. Does that sound good to you? Since yours is right at the threshold, you may want to confirm the exact weight of the sash just to be sure this isn't too strong. Can you also confirm that this is also the Series 380 balance, and not the Series 385 instead? Finally, how many did you need?