Bob from SWISCO responded:
February 18, 2019
Thanks for posting. See either our S351-29 or S390-29 Channel Balances. The only difference between these two balances is the 'depth' of the bottom nylon shoe. The Series 351 bottom nylon shoe has a depth of 1", whereas the Series 390 bottom nylon shoe has a depth of 1-1/8". Compare with your old balances and see what you think matches best. Once you know which balance you need, you'll need to choose a stamp option. Your stamped code of 28 3 conforms to our stamp option of 2830, for a window sash in the weight range of 16 through 23 lbs. Let us know what you think. |