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
DC3 1st Stage Features:
- High performance over-balanced first stage provides progressively greater intermediate pressure as depth and gas density increases for superior gas delivery under the most extreme conditions
- Designed to withstand the rigorous CE standard for cold-water performance
- Environmental sealing prevents internal corrosion, contaminants, and icing of the first stage.
Hollis 221 DC3
221 DC3 Maxflex