HOLLIS 321 OCTOPUS Regulator
The Hollis 321 Octopus is a pneumatically balanced second stage ideally suited to the over-balanced first stage of the Hollis DC7 and DC1.
- Patented Orthodontic Mouthpiece with High-Density Bite Tabs
- Ergonomic A.V.S. (Adjustable Venturi System) Dive/Pre-Dive Switch
- The Hollis 321 Octopus has a high visibility yellow front cover
- The Hollis 321 Octopus comes standard with a 36in / 91cm yellow hose