Channel Balancers for Milestone Single Hung Series 1000 Windows

Thanks for contacting us. We may be able to help, but we'll need more detailed information. Specifically, we need you to remove the balances out of the windows and show us photos of the top and bottom nylon fittings. Those are what we use to identify the Series. There are no numbers or stamps that tell us what nylon fitting combination you have, so the only way to know is to see them. 

While the balances are out, I'd also like you to measure the length of the metal channel to be 100% sure. Finally, if each sash is a different size and weight, then we'll need the stamp off each and every balance. They will likely be different, since stamps indicate the calibration of the spring.

Concerning the Series, if the combination of nylon fittings for each balance is identical across the board, you only need to show us photos from one balance. If any differ, though, then we'll have to go window-by-window.

You may find the video below helpful. It outlines the process we use to identify the right balance.

Thank you! Your photos and information are a huge help. It looks like you have an older style balance that isn't made anymore, but I believe that our S380-29 can be used to replace the first two sizes. This comes with a 19-005 top and 15-005 bottom nylon fitting. Note that the 15-005 is 1" deep. This is an important dimension to check ahead of time. If yours is anything but 1" deep, please let me know.

As for the stamps, your 28B traditionally matches our modern 2820 (for sashes weighing 12 through 16 pounds) while your 28F matches our 2860 (for sashes weighing 32 through 35 pounds). I highly recommend weighing your sashes on a scale to ensure they fall in those respective weight ranges. That will give you peace of mind. Stamps and codes and whatever else may change, but hard data doesn't lie.

As for the 11" balance, the same principles apply. The only issue is that our corresponding option--1050--is not standard. We will have to supply this as a custom order. What I will do now is email you an order link and price quote for 2 of them right now. This will allow you to add them to your cart as if it were a normal product. You can then shop for the other sizes you need as normal.

Since custom orders cannot be returned for a refund, I would just make 100% sure that you have our Series 380 balance. This has a 1/2" wide metal channel and a bottom shoe depth of 1". I know that our nylon fittings are a slightly different style than yours, but as long as they're the same size then they should work the same way. Those minor stylistic differences don't have any impact on function.

If your nylon fittings differ in any way, let me know and I can figure it out from there.