Dave Sr. from SWISCO responded:
October 22, 2015
It's hard to tell. Out 55-156-6 definitely looks like the best replacement. It is used on wood vinyl clad window sashes. Is that what you have? Would you also happen to know the manufacturer of the window? Finally, could you possibly show us a clear shot of the cross-section? Look at our picture for the 55-156-6 to see exactly what kind of angle we need.
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