Old window

Question

There is not color at the end of the spring, no name or description, the tube is not metal is plastic, but inside the plastic tube there is the metal spring.

Jasmine · Accepted Answer

Thanks for writing in! Your balances appear to be either the Series 900 or the Series 600 spiral balance. To confirm the right replacement, you'll need to remove the undamaged balance from the window and confirm the dimensions for the diameter and the length of the tube.

To determine the correct tip color, you'll need to obtain the exact weight of your sash, down to the ounce.

Take a look at the video below for an idea of the information you'll need to obtain to confirm the correct balance replacement.

These balances are made with a metal tube. The plastic tubes are no longer made since they're typically prone to crack but the metal installs just the same in most applications.