Certainteed Furr Weatherstripping
A home owner from Maryland says:
July 15, 2016
We have just bought a home that has Certainteed vinyl windows and the weatherstripping at the bottom of the top sash where it meets the screen unit is shedding like cat fur. The length of the fur is an unusually long 1/2 inch or so. It's really anoying as the wind will blow the fur into the home in clumps and in the kitchen it lands in any food laying out.
Tom from SWISCO responded:
July 20, 2016
Thank you for posting, We would like to see some photos of the profile of your weather stripping. Please include dimensions for us to take a look at and identify.