A contractor from South Carolina says:
I have 9 M & W double casement windows in one room and all 18 snubbers are broken. All the measurements are the same the only difference is the ones that were on the factory windows do not have a insert. It doesn't look like that would make a difference. I will post again if they work.
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Dave Sr. from SWISCO responded:
The nylon insert in the 39-547 is just supposed to make the window sash close a little better. It acts as a guide.
A contractor from S.C says:
With reference to my last email re: snubbers, I found out that the pvc inserts are so the wear on the window clad is limited. Is this snubber manufactured out of metal or plastic.
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Tom from SWISCO responded:
The 39-547 is metal with a plastic insert.
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