No brand name on my sash spring

Looks like you have an older style coil balance. These probably aren't made anymore, but we'll do our best to find a modern replacement. Before we go any further, can you remove the pivot shoe from the window and show me a photo of it by itself? Can you also tell me its width and thickness? I'd also like to know the thickness of the spring itself, and whatever number is printed on it. Let me know!

We offer two different videos showing two different methods on how to remove pivot shoes from the window. Take a look at the videos below and see if either one of these videos can help you remove the part.

Thank you! I recognize this now. I actually just had a customer earlier this month who needed the same thing. Now, the bad news is that these aren't made anymore. The good news is, we have a replacement option that we think has a good chance of working. It's no guarantee, but I think it's worth considering.

See our 15-199. This appears to be our best candidate. It's 17/32" thick by 1-1/4" wide and is compatible with our 1/2" thick Series 160 spring. It's also meant to be used with either our 15-150S, 15-150D, or 15-150T cover depending on how many springs are used in each side. It looks like you only have one spring per side, so 15-150S is what you'd want.

It's important to note that the Series 160 doesn't screw to the 15-199 pivot shoe, but instead kind of hooks in with that tab. That's my biggest concern, but as long as the width and thickness of your shoe match ours, and as long as the thickness of the spring is the same, then it should be okay.

The other concern is the pivot bar. The 15-199 is compatible with pivot bars with a "T" shaped tip like the 26-378, or even something like the 26-241. As long as your old pivot bar has a tip that resembles these then I think you'll be okay.

Please review this hardware and let me know what you think.

Since there are no markings or stampings on the old coil spring itself, you will need to remove the sash, weigh it on a scale, and get back to us with that weight number.

If your complete sash weighs 7 pounds, then you can go with a S160-3 coil spring on each side of the window.