Window spring

I'm afraid I can't identify what you have based on this picture. The stamp only tells us the strength of the spring, it has no bearing on the Series itself. I would need to see a clear picture of the top and bottom nylon attachments.

It also looks like your top sash guide is broken, allowing your balance to pop out above the sash. In many cases, this is the only issue; your balance may be fine. Watch the video below for more information. Also see our selection of top sash guides here.

Perfect, thank you! Your balance could either be our Series 351 or Series 390 but I'm not sure which. The Series 351 comes with our 19-002 and 15-002 attachments, but the Series 390 comes with our 19-002 and 15-001 instead. Carefully go over these parts to confirm the better match.

As for the take out clip, see our 16-028. This appears to be a close match.