window spring/balance 28B-USB and window sprng/balance 16B-USB

A home owner from Winter Springs, Florida says:
need above replacement parts so windows operate smoothly
A home owner from Winter Springs, Florida says:
pictures of parts needed:
28B-USB metal portion actually measures 29 inches and
16B-USB metal portion actually measures 17 inches.
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Tom from SWISCO responded:

I suspect your balances have the bottom attachment shown below. Is that the case? If so, choose Series 380 balances, S380-29 and S380-17. The "28B" has been replaced by "2820" and the "16B" has been replaced by "1620." Orders are placed on our site.

Alternate view of 15-005
Alternate view of 15-005
A home owner from Winter Springs, Florida says:
Thank you
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