replacement balance

Thank you for sharing your photos with us. Your balance shows some resemblance to our Series 380. This comes assembled with a 19-005 balance top and 15-005 bottom balance shoe. Carefully compare your nylon fittings with ours to see if this is a match. To determine the length you need, you will need to measure the balance from metal to metal, excluding the nylon fittings. Your balance should also have a stamp or marking. That will determine which option to choose. If there are no markings, you will need to weigh your sash on a scale, and refer to the sash weight chart listed directly on the store page. Please get back to us if any other questions come up.