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Tom from SWISCO responded:
September 7, 2016
Hey, Peter. If your old balance does not have a stamp to use as reference, you will need to weigh your sash on a scale to determine the best match. We have a chart on the S370-25 store page that tells you how much weight each option can support.
As for the weatherseal, it looks like a type of wool pile. What specific type you need depends on the size. I recommend that you remove a sample and carefully measure the width of its base and the height of the pile, then refer to our wool pile section to find the best match. |
