The Master Lock Fire-Safe Chest features ETL and UL verified 30 minute fire protection for paper and digital media up to 843 degrees Celsius. The chest is also waterproof for up to 72 hours fully submerged for improved protection. This jumbo 18.6 litre chest measures W372 x D441 x H384mm. Safety & Security#Fire Protection Boxes & CabinetsGBPSG01212