Due to popular demand, OTS have developed a new high performance 2nd stage regulator. The Stealth (SRG-1) is designed to deliver more air at deeper depths! The venturi assist increases gas flow. This is a must when under a heavy work load or when you reach the deeper depths associated with Scuba diving. The diver cannot over breathe this regulator (assuming you have a high performance 1st stage). The new Stealth 2nd stage when tested at 200 fsw had a work of breathing (WOB) between 1.2 and 1.5 joules per liter. The venturi assist ensured the diver had minimal additional effort in his inhalation effort. The SRG-1 is a balance regulator employing a dynamic balancing chamber. This feature ensures the amount of air a diver draws remains low for different intermediate air pressures. In the event a first stage fails and starts producing air more than 200 PSI’s, the SRG-1 will free flow to prevent an unsafe build-up of pressure. The Stealth Full Face Mask can be set up for Through-water, Hard-wire or no Communications. The Stealth Full Face Mask comes standard with several equalizing pads to ensure you can custom fit the mask to your liking. The double seal of the Stealth Full Face Mask ensures a great and comfortable seal. THIS IS A MUST FOR THE HARD WORKING SEARCH & RESCUE DIVER! Miflex Supply Hose: The Miflex supply hose comes standard with our Stealth 2nd stage regulator. It is a high quality low pressure hose. The hose is designed with an external Nylon safety braiding which helps resist snags and abrasions. This double brading also resists UV rays when out of the water. This will extend the life of the hose. All the stainless steel fittings have been treated with a black PVD coating. The hose is a 32″ female 9/16″ UNF with a male 3/8″ UNF fitting. The hose includes 1 o-ring.