Sherwood SR2 Features: Contemporary-styling and utilizing a multitude of cutting edge materials Superior high-performance regulator system Superior breathing performance Only truly balanced first stage on the market NITROX compatible to 40% out of the box 3/8" threaded, 78.75cm low-pressure hose 2-year warranty First Stage: Truly pneumatically-balanced design: Unique two-piece flow-thru-piston Sealed Dry Spring Chamber (SDSC): 5 low pressure (LP) ports on a 360° swivel 2 high pressure (HP) ports Marine-grade chrome plated brass Second Stage: Pneumatically balanced second stage SMART demand lever and floating crown: Relieves the load on the seat. Extends seat’s life while in storage Improved flexible purge cover Single-adjustment point Control knob optimized to enable easy location and operation Ergonomic shape and size Weightless in water for maximum comfort