BSI 1540 Block & Tackle window balance

Hello there!

Depending on the depth of your bottom shoe, you could have either our S351-16 or S390-16 channel balance. The Series 351 has a 1" deep shoe while the Series 390 has a 1-1/8" shoe. Take a look at the image below to determine which balance you'll need. You will also need the 1540 spring strength option.

As for the guide, can you show me some pictures of what you're referring to?

Comparison of the S351 and S390 balance shoes.

Thanks for clarifying. It sounds like you need a take out clip like our 16-002. Do you at least have the slots where the take-out clips install? If so, you can simply purchase new ones to replace those that are missing. 

If you don't have the slots, you could consider the "screw trick". You can install a screw into the jamb around about where the take out clip would've been and it will serve the same function. After you're done, you'd simply remove the screw.

Yes, the hook at the end of the cord hooks into a slot in the window jamb. See the video below. At the 0:43 mark you'll see exactly what I mean. 

If your bottom shoe depth is 1-1/8", you'll need the S390-16 with the 1540 spring strength option. All orders can be placed directly on our website as well. 

Your balance is compatible with many, many different kinds of top sash guides. I'd be happy to make a recommendation but I will need the original as a reference.

If possible, please remove an undamaged version from the window and show me a clear picture of it from the front and side. Think of it like a mugshot. I can then see if anything in our catalog matches up.