Halcyon now includes a Semi-Closed Circuit 60lb. Lift Bag in their lift device product line. Halcyon's SCC 60 was designed to allow for easy lift inflation for a wet suit diver who wouldn't otherwise have a spare low-pressure inflation hose handy. Designed to be filled by a diver's second stage regulator, the SCC 60 combines the ease of inflation of a traditional bell-bottomed lift bag with an over-pressure release valve to dial in a precise amount of lift and to prevent damage caused by over-inflation at depth.