Stamped number doesn't match

Handy Person from Palm Coast, FL
The stamp on the channel balance I have is UB 28D. Can you cross reference this to your numbers?
3 Replies
Emily
Emily from SWISCO
SWISCO
Expert

Hello!

If you have the S380-29, you would want the 2840 spring strength option based on your 28D stamp. Let us know if you have any additional questions!

Handy Person from Palm Coast, FL
Thanks!
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