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Keep your home protected and energy-efficient with the SealGuard 3X Silicone Door Bottom Strip. Designed with a tri-fin sealing structure, this premium door seal effectively blocks dust, cold air, insects, noise, and light from entering through the gap under your door. Made from high-quality flexible silicone, it conforms to uneven surfaces and provides long-lasting performance in all seasons.With its strong 3M adhesive backing, installation is quick and tool-free — just peel and stick. It fits gaps up to 0.8 inches (20mm) and can be easily trimmed to match the width of any standard door. Whether you're sealing doors in your home, office, or garage, this strip offers a simple and effective solution to improve insulation, reduce energy bills, and create a more comfortable indoor environment.