M-D Brown Rubber Weatherstrip For Windows 17 ft. L X 3/8 in.

High performance Silicone or EPDM rubber blend provides a superior seal to block out drafts and dust around doors and windows. Stays durable and flexible in extremely cold and hot temperatures, down to -40 degree Fahrenheit and up to 140 degree Fahrenheit. Saves energy and money and year-round. Guaranteed flexible for the life of your home.