Stack-On 28-Gun Fire-Resistant Waterproof Safe - Black, Electronic Lock, Model# TD14-28-SB-E-S-DS Tested and verified to be fire-resistant for 30 minutes up to 1400deg F Waterproof in up to 2 feet of standing water for up to 72 hours Independently tested and verified by ETL Safe must be bolted to floor to maintain waterproof rating Batteries are accessible from the front of safe and are easy to replace