Window balances older style

Hello, and thank you for waiting during this busy season. Your old rod-type balance isn't made anymore but our Series 770 can work as a replacement. You'll just need to measure your old assembly and weigh your sash on a scale to determine the length and spring strength option you'll need. There's a chart under the product description on the S770 product page that will tell you what the correct option is based on your sash weight. 

Based on your specifications, I recommend the S770-27 with the 27C spring strength option. A pair of balances with this option will support a sash weighing 17 to 22 pounds. As for the pivot shoe, see if the specifications of the 15-179 match up to your old one. All orders can be placed directly on our website at your convenience. 

Thank you very much, we appreciate it! Please let us know if we can be of any further assistance.