29 inch Spiral Balance Inquiry

Hello there, and thanks for reaching out to us! It appears you have a spiral balance for a tilt window. You will need to measure the diameter of the tube. If it is 3/8" it will be a Series 900 Spiral Balance. If it is 5/8" it will be a Series 600 Balance. From there, based on the length of the tube, you should be able to find the exact part that you need. All pricing is listed on each part's respective store page in our catalog. Thanks!