Halcyon - Butterfly D-Ring Assembly

The Halcyon Butterfly D-ring Assembly was created to assist Halcyon Symbios divers with attachment points for their rebreather. It is designed to be put on the crotch strap and serve as the lower attachment point for the unit. This will assist in keeping the unit in place and help keep it from riding up on the diver. 

Other divers that use butt mounted O2 have found it useful for clipping accessories as the standard clip off point may be covered by the O2 bottle.