The OMS Airstream 1 Evoque First Stage Regulator is an overbalanced diaphragm design with an environmentally sealed main spring chamber. The all sandblast finished chrome plated marine brass first stage regulator is a balanced diaphragm design which is environmentally sealed. The diaphragm membrane transmits the pressure changes to the internal mechanism eliminating the need for the surrounding water to enter the intricate mechanism. The benefit of this type of first stage design is that none of the internal parts are exposed to contaminants such as salt, sand, chlorine or pool acids. These environmental contaminants cause corrosion and mineral deposits to form on the internal mechanism deteriorating regulator performance.

The OMS Airstream 1 Evoque First Stage Regulator takes it one step further with the environmentally sealed main spring chamber. This further eliminate cold water from entering the spring cavity keeping the water further away from the internal mechanism and not allow the air flow of the regulator to be affected by the cold water. The first stage comes equipped with 4 LP ports and 2 HP ports. The LP ports route 30° down and 15° forward. LP hoses route close to the body but still allows for open water divers to route standard configuration. HP ports route down 45° bring hoses close to divers’ body. Flat top reduces drag and creates streamlined profile. Regulator has larger interior gas chambers that allow for higher gas volume. Available in yoke or DIN with 4,350 psi (300 bar) service.

The OMS Airstream 1 Evoque Second Stage Regulator is a light weight pneumatically balanced design with a diver adjustable air gas delivery knob that is ratcheted to prevent jamming and a dive/pre-dive switch to prevent unwanted free-flow when surface swimming on snorkel, during beach or boat entries and swimming underwater into a current. The second stage regulator has a trap-door access exhaust valve for easy cleaning along with an integral exhaust tee. Secondary primary diaphragm cover and large purge button configuration easy to work with dry gloves. Housing is made from a durable impact resistant plastic and internal components are chromed brass. Mouthpiece is a dual molded silicone for added comfort and to reduce jaw fatigue. Regulator comes with a flex hose to further reduce jaw fatigue and an owner’s manual.

The OMS Airstream 1 Evoque Second Stage Octopus Regulator like the primary is a light weight pneumatically balanced design with a diver adjustable air gas delivery knob that is ratcheted to prevent jamming and a dive/pre-dive switch to prevent unwanted free-flow when surface swimming on snorkel, during beach or boat entries and swimming underwater into a current. The second stage regulator has a trap-door access exhaust valve for easy cleaning along with an integral exhaust tee. Bright yellow secondary primary diaphragm cover and large purge button configuration easy to see in an out-of-air-emergency and work with dry gloves. Housing is made from a durable impact resistant plastic and internal components are chromed brass. Mouthpiece is a dual molded silicone for added comfort and to reduce jaw fatigue. The Octopus Regulator comes with a extra-long flex hose.