The Storm 90 Degree Angled Swivel Adapter attached attaches between the regulator second stage and its low pressure hose routing the hose down the diver's chest and/or under the arm, which eliminates hose push giving you a more comfortable bite on your mouth piece. Your hose will lay closer to your body (under your arm) helping to eliminate tangles and improve streamlining. Sidemount divers use this Right Angle Adaptor to route their hoses down their chest to the bottles eliminating the need to route the hose around the neck.
The 9/16"-18 UNF Male end of this adaptor screws into the standard 9/16"-18 UNF Female fitting on the end of a standard regulator hose.
The 9/16"-18 UNF Female end of this adaptor accepts the standard male 9/16"-18 UNF Male connector on most second stage regulators.