You cannot breathe directly out of a scuba tank because of the high pressure. A regulator reduces pressure to safe a level that can be inhaled by the diver. A diving regulator has two parts: the First Stage reduces the tank pressure and connects it to the Second Stage which contains the mouthpiece for breathing
- See Buying Guide
Oceanic SP-5 1st Stage Din Oceanic SP-5 1st Stage Din
The SP-5 may have been the first regulator you ever used due to its widespread use in rental and resort operations. The SP-5 may have been the first...
Our Price: $169.95
Oceanic SP-5 1st Stage Yoke Oceanic SP-5 1st Stage Yoke
The Alpha SP-5 may have been the first regulator you ever used due to its widespread use in rental and resort operations. The Alpha SP-5 may have been the...
Our Price: $169.95
Scubapro MK21 First Stage Only Regulator Scubapro MK21 First Stage Only Regulator
A new compact, balanced piston-controlled first stage with exceptional SCUBAPRO breathing performance at a mid-range price. A new compact, balanced...
Our Price: $379.00
Zeagle Onyx II First Stage Din Zeagle Onyx II First Stage Din
The Onyx's internal structure allows direct airflow through the 1st stage, providing lower turbulence for outstanding performance. The Onyx's internal structure allows...
Our Price: $335.95
Zeagle Onyx II First Stage Yoke Zeagle Onyx II First Stage Yoke
The Zeagle Onyx II First Stage Regulator outperforms many, much more expensive regulators with outstanding reputations. The Zeagle Onyx II First Stage...
Our Price: $335.95
Zeagle Onyx II - Din Zeagle Onyx II - Din
The Onyx's internal structure allows direct airflow through the 1st stage, providing lower-turbulence for outstanding performance. The Onyx's internal structure allows...
Our Price: $473.95
Zeagle Envoy Razor Zeagle Envoy Razor
The Flow-by Piston design of the RaZor 1st stage provides much greater reliability and serviceabilty compared to conventional designs, while improving responsiveness and performance at all breathing rates. The Flow-by Piston design of the...
Our Price: $339.95
Scubapro MK17 EVO/G260 Regulator Scubapro MK17 EVO/G260 Regulator
The MK17 is a high performance, balanced diaphragm first stage engineered specifically for cold water and harsh environments. The MK17 is a high performance,...
Our Price: $779.00
