This is the Oceanic Slimline 3 Octo Scuba Diving Octopus Features: Rugged and Dependable Engineered to Provide Same Outstanding Reliability as Primary Regulator Fits Comfortably in Right-or-Left-Hand, Octopus Convenient for All Divers Compact, Low Profile Design Durable, Lightweight Techno-Polymer Material for Less Cumbersome Dive Sleek, Simple Structure, Easy to Clean and Maintain Bright, Highly Visible Yellow Soft Purge Cover Durable and Flexible Bright Yellow 36 (91.4 cm)Miflex Braided Hose Hose Threads: 3/8" Hose Further Increases Diving Comfort Silicone Mouthpiece, Diaphragm and Exhaust Valve Stainless-Steel Lever Orthodontic Mouthpiece Nitrox Ready Out-of-the-Box to 40% Simple, Reliable Downstream Demand Valve Design Weight: 4.87 oz. (138 g) A super streamlined alternate air source that sits flat to reduce drag and prevent tangles."