Hollis

Breathe with confidence knowing you have the peak of 30 years of regulator design experience in the 212 Regulator. Paired with the DC1 Swivel 1st stage is designed to be the best in world performance.

212 Second Stage
Pneumatically balanced second stage
Patented Dynamic Adjustment once set automatically maintains inhalation effort throughout the dive by compensating for depth changes.

DC1 1st Stage
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
Swivel turret allows for ideal low pressure hose routing
Environmental sealing prevents internal corrosion, contaminants, and icing of the first stage
Designed to withstand the rigorous CE standard for coldwater performance

Breathe with confidence knowing you have the peak of 30 years of regulator design experience in the 212 Regulator. While pushing the limits on strenuous dives, be confident that the performance and reliability of the 212 DC2 will never hold you back.


212 Second Stage
Pneumatically balanced second stage
Patented Dynamic Adjustment once set automatically maintains inhalation effort throughout the dive by compensating for depth changes.

DC2 1st Stage
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
Compact & streamlined forged design provides the ultimate control over the internal air path for superior air delivery
Environmental sealing prevents internal corrosion, contaminants, and icing of the first stage
Designed to withstand the rigorous CE standard for coldwater performance

Breathe with confidence knowing you have the peak of 30 years of regulator design experience in the 212 Regulator. While pushing the limits on strenuous dives, you can be confident on the performance and reliability of the 212 DC3.

212 Second Stage
Pneumatically balanced second stage
Patented Dynamic Adjustment once set automatically maintains inhalation effort throughout the dive by compensating for depth changes.

DC3 1st Stage
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 coldwater performance
Environmental sealing prevents internal corrosion, contaminants, and icing of the first stage

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
Pneumatically balanced second stage
Ergonomic A.V.S. (Adjustable Venturi System) Dive/Pre-Dive Switch
Patented Orthodontic Mouthpiece with High Density Bite Tabs li>

DC3 1st Stage
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 coldwater performance
Environmental sealing prevents internal corrosion, contaminants, and icing of the first stage

With the bulletproof design of the Hollis HP5 first stage the H-O2 Tech Regulator is certified for up to 100% oxygen service thanks to highly specialized component materials and manufacturing processes

210 Second Stage - H-02 First Stage
Cleaned and assembled in a clean room environment with specially designed materials, halocarbon based lubricants and color-coded for easy identification
Comes standard with 300 BAR/4500 PSI DIN connection and 40” in. /101 cm regulator hose
The perfect option for this regulator is the Hollis Brass PSI or BAR pressure gauge with 6”in./15 cm HP Hose
This coupled with its outstanding reliability make it’s the only choice for technical divers
Designed to withstand the rigorous CE standard for coldwater performance
Do not attempt to use this product with enriched air until you have obtained training in Nitrox use with mixtures containing over 40% O2 by volume, from a nationally recognized training agency
Aluminum Ring optional