27 4 GV CMC 7

Home Owner from San Franscisco
Sep 16, 2024 3:37 pm
This is what was printed on the channel balance (spring) for my aluminum single hung insulated window. The channel is 5/8" x 5/8". The length of channel is 27 7/8"and the overall length with the plastic ends is 29 5/8". The vent is approximately 40" wide x 29 1/2" high. Do you have the channel balances for this?
2 Replies

Emily from SWISCO
Sep 19, 2024 3:50 pm


Hi there!
Thanks for reaching out to us. We may be able to help with this. Can you upload photos of the top and bottom fittings along with the metal clip attached at the end of the pulley cord? How many balances are you looking to replace?
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