window Block & tackle balance

A quick learner from Mission Viejo, CA says:
April 22, 2023
27" long (metal); 1/2" wide; 5/8" deep; nylon end near pulley has wings; other end does not have wings.
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Jasmine from SWISCO responded:
April 24, 2023

Hey there! Your balances resemble out S350-27. These balances, like yours, have a non-winged top and a winged bottom. You'll need the 2640 stamp.
27" Series 350 Channel Balance
27" Series 350 Channel Balance
S350-27
$10.77
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