Kerf Weather Strip Type of Window Compression Seals [weatherstripping] Bulb Type .250 (1/4") or the .300 Diameter. Seals for  Casement and Awning, Double Hung [WINDOWS] Bulb Type .250 .300 Diameter. The best in compression style, kerf insert weatherstripping - AVAILABLE IN .250 or .300 Diameter AS SHOWN IN BEIGE, BROWN, BLACK OR WHITE - in One Hundred (100') Foot Rolls. This weather strip has the flexibility of thermoplastic, and performance of thermoset rubber type seals. Comes with a dual durometer kerf barb insert that allows for easy insertion and installation as well as out-performing the rigid plastic types of weather strip. The flexible bulb is the best mechanical seal with less resistance and an excellent slip coat funtionality to decrease operating force in window and door applications. 

SPECIFY THE DIAMETER AND THE COLOR IN THE "comment section" at checkout.

IF NONE SPECIFIED - we will ship the .250 Diameter in Beige / Tan.