SWISCO - The Replacement Hardware Authority

Please help me find a Window Balancer like this

A landlord from Phoenix, AZ says:
Hello! We are looking for 4 more window balancers just like this one. We took this out of one of the existing windows. We've had bad luck with ordering parts online only to get them and have them be the wrong thing, so rather than just ordering a generic window balancer, I want to make sure it's exactly right! I don't know if there are different kinds or what makes one different from the other.

There don't appear to be any markings on this one. It is 28 inches long from one end of the metal piece to the other. The little plastic things on the sides make it a little bit longer.

If you need more information, I'd be happy to take more pictures or describe anything else you need. Thanks so much!
~Emily
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting, Emily. I'd be happy to help you determine what you need. First, what is the depth of this shoe? Do its dimensions match our 15-001? Also, what does the top attachment look like? Does it have wings or not?

If there is no stamp on the metal channel, then can you give me the weight of the window sash? That will help us determine what option you need.
A landlord from Phoenix, AZ says:
Yes, the dimensions match your 15-001 (1-18" wide). There are wings at the top of the channel (see photo). The channel is stamped with the number 2740 (see photo).

Thanks!
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thank you for the additional information and photos. The balance you need to order is the S395-28 with the 2740 stamp option.
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