Protect your family's vital documents and valuables with the Master Lock Large Fire and Waterproof Security Chest. Designed to fit A4 paper size, this chest offers unparalleled protection against fire and flood damage. With UL/ETL verified fire resistance for 30 minutes at temperatures up to 843°C, you can rest assured that your important papers, digital items like CDs and USB sticks, and personal treasures are safe. The ETL verification for water submersion means that even in the event of a flood, your belongings will remain secure. Equipped with a programmable digital lock, it ensures that unauthorized access is prevented and the lid stays closed during a fire. The chest features a resettable combination and a non-programmable Master combination for added security. Dimensions: Exterior (H x W x D): 35.9 x 42.1 x 35.1 cm; Interior (H x W x D): 29.5 x 30.5 x 20.6 cm; Volume: 18.5L; Power: 1 x 9V Battery (not included); Weight: 19.5 kg. Ensure peace of mind with this essential security solution for your home.