Great Stuff Smart Dispenser Window & Door is a minimal-expanding polyurethane foam with low-pressure build that can help lower energy bills by forming a durable, airtight and water-resistant seal between a window or door frame and its rough opening. Comes with new smart dispenser straw. No drips, less mess, the foam stops where you stop. Reusable for up to 30 days – use again and again
Precise, greater control. Soft & flexible, it won’t bow window frames. Offers greater insulation value than chinked fiberglass or caulk.