Bob from SWISCO responded:
August 23, 2019
Hi Sam. If the outer tube of your spiral balance is 23" long and 5/8" in diameter, then it sounds like you need a S600-23. Now, white tips are pretty unreliable to go by in terms of your color tip option, as they come from an older ratings system no longer used. Weigh your window sash. You can then match that exact weight with one of the weight ranges listed for each color tip option on the product page. |