20oz Pro Window & Door Foam

Great Stuff Pro Window & Door Polyurethane Foam Sealant is specially formulated to air seal the gap between a window or door frame and its rough opening. Low pressure formulation proven to not distort or bow window and door frames when properly installed. Expands to take the shape of gaps, creating a long lasting, airtight and water resistant seal. Paintable, stainable and sandable.