The Hollis 221 DC3 Regulator is built with the same quality as the DC1, without the swivel turret, the DC3 is the ideal 1st stage for double cylinder configuration as well as perfect for single cylinders. Paired with the 221 which uses the same technology as the 212 without the dynamic adjustment. This reg set is designed for those who believe keeping it simple is best.
221 Second Stage Features:
- Pneumatically balanced second stage
- Ergonomic A.V.S. (Adjustable Venturi System) Dive/Pre-Dive Switch
- Patented Orthodontic Mouthpiece with High Density Bite Tabs
Hollis 221 Second Stage
221 Balanced Second - w/o Hose