Casey from SWISCO responded:
June 29, 2023
Hello, Your spiral balance resembles either the 3/8" diameter S900-22 or the 5/8" diameter S600-22. I would recommend double-checking your diameter since these balances were not made in 1/2" sizes to our knowledge. Keep in mind that the diameter is determined by the size of the plastic housing on your original balances. If you'd like to replace the pivot shoes as well, we would need to see yours uninstalled, as well as confirm the exact width and thickness to compare to our inventory. Thank you! |
Casey from SWISCO responded:
June 30, 2023
As we mentioned, we would need to see your pivot shoe fully removed from the window to compare it to our inventory. You are correct that the width and thickness are the most important dimensions to ensure that whatever we recommend would fit in your window channel, which is tough to measure with the shoe still installed. Also, spiral balances are not compatible with one particular pivot shoe. See the video below to help with the removal process. As for the balance, only style spiral balances often used the plastic covers shown in your photos but manufacturers moved over to using all metal housings since the covers tend to become brittle over time. Also, these balances were not made with 1/2" diameter plastic tubes to our knowledge but the can become tough to measure over time since the plastic can become misshapen. You may want to check another balance to confirm if the plastic tube matches our 3/8" or 5/8" replacements. |