| Type of second stage | Pneumatically balanced |
| Controls | Venturi switch |
| Breathing resistance | Preset |
| Mouthpieces | 2ea. – A Comfo-bite, installed, and a standard with bite wings in the box |
| Lip shield | On Supreme models only |
| Heat Exchanger for freezing resistance | Standard on all models |
| 2nd Stage Weight | 175 g |
| 2nd Stage Weight – Supreme model | 178 g |
| Hose | NOT INCLUDED |
| Overall work of breathing (WOB) scores | Avg. 0.84 joules/liter |
| Nitrox compatible | Yes to 40% O2 when new, out of the box |
No customer comments for the moment.