Full Replacement

A landlord from New Jersey says:
I took this out of my window. There is the number "4" printed on the side of each metal strip. I am not sure if I can simply buy a full replacement or I need to buy several of the individual pieces.

Thanks for your HELP!!
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Julia from SWISCO responded:

Thanks for posting. Your pivot shoe is actually an older version of our 15-180. This uses our Series 190 Coil Springs. For your housing you should be able to use our 15-181 and 15-182. Let me know if you have any further questions!

A landlord from New Jersey says:
Julia, Thanks for getting back. I need to replace the whole balance system on each side ... can you help me confirm items? Does each side need (1) 15-180, (1) 15-181, (2) 15-182, (2) S190-740 ?? Is there anything else I need to put a complete system together?
A landlord from New Jersey says:
Just something quick on the coil size itself ... there is a stamp on it but unlike others I see on your site from older references, mine only has the number "4" which is stamped in a manner that could be read normally if coil was held up in manner in how it is affixed into window.

THANKS FOR THE HELP.... YOU GUYS ARE AWESOME!!
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Julia from SWISCO responded:

That all sounds correct, except that the 4 likely indicates that you will need to S190-440. If you want to verify that this is correct, you can weigh your window sash. Individually, the S190-440 coil balance can hold 4 pounds. This is added together with the other coils to support the whole weight of the sash. Since you appear to have 4 coil springs, this would amount to a 16 pound window. 

A landlord from New Jersey says:
Your comment makes a ton of sense....was wondering if, instead of using two 4s, I could just use one 8, something like ... S190-840 and then use single support clip? Would simplify install for me and save a little complexity and dollars.
Please let me know where to comment on how helpful you have been in assisting me....best customer service I have had in a long long time!!
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Julia from SWISCO responded:

Thanks for the kind words! We really appreciate it. We typically don't recommend veering from your original set-up as it's not something that I could guarantee would work. Best of luck with your repair!

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