Emily from SWISCO responded:
October 26, 2022
Hi there! You actually have either the S380-37 or S385-37 channel balance, depending on the depth of the bottom shoe. Our Series 380 comes attached with a 1" deep shoe and the Series 385 comes attached with a 1-3/32" deep shoe. Measure as shown in the image below to determine the best match. You will also need to select the 3650 spring strength option. Comparison of the S380 and S385 balance shoes.
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