F stamp on S770

A contractor from New York says:
July 3, 2023
I need a 20" Series 770 balance. My window sash has an F stamp but your catalog only goes to E.
Can you get it for me. I need 2.
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Jasmine from SWISCO responded:
July 3, 2023

Thanks for reaching out! I've forwarded a quote with a link for the (2) requested balances as this will need to be a custom order. You may use this link to review the pricing and to place the order from your online cart.

Be sure to check your spam/junk folder if you do not find the link in your primary inbox.

Please let me know if you have any questions.
20" Series 770 Balance
20" Series 770 Balance
S770-20
$12.00
How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
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