The balanced diaphragm R1000 first stage is compact and lightweight. It has a full complement of four low-pressure and two high-pressure ports and is fine- tuned for optimum performance. FEATURES First stage (R1000) Balanced diaphragm first stage Cold water insulation system Two H.P. ports and four L.P. ports (2 standard/2 high flow) ports High flow L.P. ports offer up to 15% increase in air flow DIN version available as RS1001 DIN (300bar/4350psi) Second stage (S0001) Lightweight, compact composite case design Left or Right hand configuration Venturi adjustment lever Ortho-consciously designed mouth piece TECHNOLOGY ORTHO-CONSCIOUS MOUTH PIECE The Ortho-Conscious Mouth Piece feature prevents jaw fatigue. The ridges and flexible material allow the diver to have more control of the mouth piece and reduces tension in the jaw. VENTURI FLOW ADJUSTMENT The Venturi Flow Adjustment allows for ease of breathing by controlling the direction of air through the mouthpiece.