it is 17 7/8 inches long, no numbers that would help indendify. Thanks for you help. Nathan
window balance
Thanks for your photos. Based on what I see here, you have either our Series 380 or Series 385, depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match.
When measuring length, make sure that you only measure the metal channel. You do not include the plastic fittings in this measurement.
Lastly, if there's no stamp on the original, then you need to weigh your sash on a scale to verify the best weight option. There are going to be several to pick from, so it's imperative that you get a precise sash weight before you buy anything.
Great! All orders can be placed on our site at your convenience. Please feel free to reach out if you had any follow up questions.