Tom from SWISCO responded:
September 17, 2014
Hey, Mark, good to see you again. Please see our Series 140 coil balance and see if this could work for you. You may also want to see our video on how to replace this type of balance.
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Tom from SWISCO responded:
September 22, 2014
Yes, for this particular balance the stamp of "3R" corresponds to our S140-3. A pair of these balances working together can support a sash weight of 4 through 6.99 pounds.
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