Bob from SWISCO responded:
March 17, 2024
Thanks for posting. If you are absolutely certain the longer balances are otherwise identical to the Series 380 balances you've previously bought, you likely need the S380-30. You'll need to look for a stamp on the old balances to determine what stamp option to select; or, weigh the window sash and go by the chart under the S380-30 product description to determine which stamp to pick. If you're not entirely sure the Series 380 is what you need, please send us photos of the fittings on both ends of the metal channel, and we'd be happy to verify. |
Bob from SWISCO responded:
March 19, 2024
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