Keep your marine vessel safe and in compliance with fire safety regulations with the IMPA 335807 Fire Door Keep Locked Shut Sign. This durable, high-visibility sign is essential for ensuring that crew members and passengers are aware of the importance of keeping fire doors locked shut at all times. The clear, bold lettering and universal symbols make it easy to understand, even in emergency situations. Made from long-lasting materials, this sign is suitable for use in a variety of marine environments and is designed to withstand harsh conditions at sea. Ensure the safety of everyone on board by prominently displaying the IMPA 335807 Fire Door Keep Locked Shut Sign in key locations throughout your vessel.