The Class II Open Bottom Bell Series has become a standard in commercial diving. Industry safety regulations require a bell in working depths of 220 FSW or 2 hours in water decompression. Class II bells have been proven rugged, dependable, and affordable. Providing a safe haven with emergency breathing gases and a stable and comfortable platform for decompression increases diver safety. Providing a work platform for extra tools, shackles, nuts, bolts increases diver productivity, and other items needed at the job site, helping to reduce unproductive bottom time.