Millard channel balance

Quick Learner from Maple Valley, Washington

Jun 1, 2026 11:47 pm

Millard windows need 6 new channel balances for 3 windows the same size. The metal length is 21 inches. The only thing stamped on the metal is BSI 20C

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2 Replies

Jasmine from SWISCO

Jun 5, 2026 3:35 pm

Thanks for your post! This balance reminds me of the S380-21 or the S385-21. You'll need to measure the depth of the bottom shoe to confirm the correct series.

Our 2020 stamp may work in place of the 20C stamp on your balances. Be sure to double check that your sash weight falls between 8 to 12lbs.

Comparison of the S378, S380 and S385 balance shoes.