Ensure a secure and professional seal with the Alumicor Commercial Storefront Glazing Gasket. This high-performance 5/16" x 3/8" black rubber seal is specifically designed for Alumicor commercial storefront systems. It provides a weather-resistant and airtight seal for glass panels, preventing air and water infiltration. Perfect for new construction and retrofits, it fits precisely into aluminum glazing channels, guaranteeing long-lasting durability and energy efficiency. Easy to install with clean, finished edges, the Alumicor Gasket is the reliable solution for any commercial storefront project. Please note, no returns on products cut to size or special orders.