| Hollis 321 Octopus |  |  | This octopus is designed on the same platform as the high performance 221 2nd stage. | |
|  | | Hollis 210 / HO2 Regulator | |  | With the bulletproof design of the Hollis HP5 first stage the H-O2 Tech Regulator is certified for up to 100% oxygen service. | |
|
|
| Hollis 221 / DC3 Regulator | |  | Built with the same quality as the DC1, without the swivel turret, the DC3 is the ideal 1st stage for double cylinder configuration | |
| | | Hollis 212/ DC3 Regulator | |  | Breathe with confidence knowing you have the peak of 30 years of regulator design experience in the 212 Regulator. | |
|
|
| Hollis 212 / DC1 Regulator | |  | Breathe with confidence knowing you have the peak of 30 years of regulator design experience in the 212 Regulator. | |
| | 
|
|
|
