GREAT STUFF PRO™ Window & Door Insulating Foam Sealant - 20 oz.

GREAT STUFF PRO™ Window & Door is a minimally expanding foam with a low-pressure build that forms a durable, airtight and water-resistant seal between a window or door frame and its rough opening without bowing or bending the window frames. The foam only expands enough to generate an effective seal. GREAT STUFF PRO™ is the original window and door draft stopper and, when applied properly, is proven not to distort or bow window and door frames.