Set Deal Alert Click to activate an email alert when this deal is updated First Alert 0.78 cu. ft. Security Box $70 at Home Depot Comments 135 days ago by ShadowM in Home / Garden HOTNESS UNHOT Today only. Home Depot has the First Alert 0.78 cu. ft. Security Box for $70 with free shipping. Features combination lock and can hold a laptop and important documents. $70 Amazon: $76 Retail: $120