1st stageThe balanced diaphragm mechanism allows for ease of breathing and consistent performance while protecting internal moving parts from the environmentThe T-Shape design is compact and provides optimal hose routingThe unique forged body uses less brass, making it more compact and lighter weight than other regulatorsThe polyurethane outer skin protects metallic parts from shocks The MP and HP outlets are perfectly positioned to for streamlined hose positioningThe open yoke screw helps avoid water retention2nd stageThe unique Comfobite mouthpiece, with the patented roof of mouth bridge, reduces jaw fatigueThe removable and reusable clip facilitates quick and easy mouthpiece changesWith few components and easy access to the exhaust valve through a clipped deflector, maintenance is easyThe in-line Venturi knob offers effective and progressive adjustments using an ergonomic design for easy manipulation, even with glovesThe polyurethane purge cover offers significant abrasion- and tear-resistance, protects from shocks, allows for easy water purging, and decreases inhalation effortSide openings prevent free flow when facing into currents or riding a scooterReinforced polycarbonate makes the second stage strongerThe Deflector splits up bubbles to decrease noise and protect the valve from expiration