What is immediately perceivable is the special side exhaust configuration of the Hollis 500SE Second Stage. This guides the bubbles along one side of your face instead of right in front. It also means that you can choose between a left or right positioning, since there is no upside down.
Hollis’ 500SE is a pneumatically balanced servo valve system, which has been designed to provide precision airflow and unparalleled performance; this true for both air and trimix divers. The second stage offers you optimum performance regardless of dive depth.
The 500SE is easy to disassemble, without the need for special tools. The disassembly is also possible underwater if necessary.
Features:
- Pneumatically balanced servo valve system
- Patented orthodontic mouthpiece
- Boltsnap tie point
- Second stage only - no hose included
