Paul from SWISCO responded:
September 7, 2018
The plastic tube you show in your photos should actually measure closer to 5/8" diameter rather than 3/8". That said, I believe you can go with our S600-28 spiral balance with a blue tip that holds a sash weight of 12-31 pounds. Take a look to see if this is a match for you. The balance tubes we offer are metal, and not plastic. You may also want to consider going with our 75-006 charging tool to help with the new installation. You may also want to review some helpful media guides on this page. |