Sherwood Oasis Pro 2025 Regulator 1st & 2nd Stage Set

Best For

• Recreational scuba diving
• Divers who experience dry mouth during longer dives
• Warm and moderate-water diving above 50°F / 10°C
• Divers who prefer an environmentally sealed first stage
• Divers looking for a complete primary regulator setup
• Sherwood divers who want the Oasis moisture-retention system

Not Ideal For

• Diving in water temperatures of 50°F / 10°C or colder
• Divers specifically requiring a regulator rated by the manufacturer for colder-water use
• Customers looking for a complete regulator package that also includes an octopus, pressure gauge, or BCD inflator hose

Key Features

• Complete Primary Regulator Set: Includes the 9000 Series first stage, Oasis Pro second stage, and connecting low-pressure regulator hose.
• Moisture Retention Vanes: Sherwood's MRV dual-vane system captures moisture and returns it to the diver during inhalation to improve breathing comfort.
• A2-DC Technology: Air-Assisted Depth-Compensation dynamically responds to ambient pressure changes using internal pneumatic force to compensate for variations within the first-stage chamber.
• Environmentally Sealed First Stage: The dry first-stage design isolates internal components from the surrounding environment and helps minimize corrosion.
• Balanced Performance: Sherwood's A2-DC design provides responsive regulator performance as ambient pressure changes during the dive.
• Flow-By Piston First Stage: The 9000 Series first stage utilizes Sherwood's flow-by piston design.
• Four LP Ports: Provides multiple low-pressure connection options for the primary second stage, alternate air source, and BCD inflator configuration.
• Two HP Ports: Allows connection of compatible submersible pressure gauges, transmitters, or other high-pressure instrumentation.
• Dual-Vane MRV System: Uses two similarly shaped vanes, including a solid lower vane and an upper vane with five moisture-capturing vents.
• Updated Modern Styling: Features a titanium-finish accent ring and diaphragm for the updated Oasis Pro appearance.

9000 Series First Stage

• Low-Pressure Ports: 4
• High-Pressure Ports: 2
• First Stage Design: Flow-By Piston
• Balancing Technology: A2-DC Air-Assisted Depth-Compensation
• Environmental Protection: Environmentally Sealed and Dry

Oasis Pro Second Stage

• Moisture System: MRV Moisture Retention Vanes
• Vane Configuration: Dual-Vane System
• Upper Vane: Five Moisture-Capturing Vents
• Recommended Water Temperature: Warmer than 50°F / 10°C

Specifications

• Brand: Sherwood
• Model: Oasis Pro
• Product Type: Primary Scuba Regulator Set
• First Stage: Sherwood 9000 Series
• First Stage Type: Flow-By Piston
• First Stage Technology: A2-DC Balanced Regulator
• Environmental Seal: Yes
• LP Ports: 4
• HP Ports: 2
• Second Stage Technology: MRV Dual-Vane Moisture Retention System
• Connecting Hose: Low-Pressure Regulator Hose Included
• Water Temperature: For use in water warmer than 50°F / 10°C

How the MRV System Works

The Oasis Pro's Moisture Retention Vanes use two similarly shaped vanes inside the second stage. The solid lower vane works with an upper vane containing five moisture-capturing vents. Moisture is captured between the two vanes and returned to the diver during inhalation, helping reduce the dry-mouth sensation that can occur while breathing compressed air.

What's Included

• Sherwood 9000 Series first stage
• Sherwood Oasis Pro second-stage regulator
• Low-pressure regulator hose connecting the first and second stages
• Primary regulator supplied as an assembled regulator set

Not Included

• Alternate air source or octopus
• Submersible pressure gauge or console
• Wireless pressure transmitter
• BCD inflator hose unless otherwise specified
• Scuba cylinder

Temperature Notice

Sherwood specifies the Oasis Pro Regulator for use in water temperatures warmer than 50°F / 10°C. Divers planning colder-water dives should select regulator equipment specifically rated for those conditions.

Free Parts for Life

Sherwood lists the Oasis Pro as eligible for its Free Parts for Life program. Restrictions, registration requirements, and scheduled service requirements may apply. Customers should review Sherwood's current program terms to confirm eligibility.

FAQs

Does the Oasis Pro come as a complete primary regulator?
Yes. This regulator set includes the Sherwood 9000 Series first stage, Oasis Pro second stage, and the low-pressure regulator hose connecting the two stages.

Does it include an octopus or alternate air source?
No. This is the primary regulator set. An alternate second stage or octopus is not included unless specifically stated separately.

What makes the Oasis Pro different from a standard regulator?
The Oasis Pro incorporates Sherwood's MRV Moisture Retention Vanes, which capture moisture and return it during inhalation to help improve breathing comfort.

What is A2-DC?
A2-DC stands for Air-Assisted Depth-Compensation. Sherwood's patented system uses internal pneumatic force to respond to changes in ambient pressure and compensate for variations within the first-stage chamber.

Is the first stage environmentally sealed?
Yes. The Sherwood 9000 Series first stage used with the Oasis Pro is environmentally sealed and dry.

How many ports does the first stage have?
The 9000 Series first stage has four low-pressure ports and two high-pressure ports.

Can I use the Oasis Pro for cold-water diving?
Sherwood specifies this regulator for water temperatures warmer than 50°F / 10°C. It should not be considered a cold-water regulator outside the manufacturer's stated temperature range.

Care & Maintenance

Rinse the regulator thoroughly with fresh water after diving while preventing water from entering the first stage. Allow the regulator to dry completely before storage and avoid unnecessary stress, sharp bends, or damage to the hoses. Inspect the mouthpiece, hoses, fittings, and first-stage connection regularly. Regulator servicing should be performed according to Sherwood's recommended service schedule by appropriately qualified regulator service personnel.

Expert Insight

The Sherwood Oasis Pro combines two comfort-focused technologies in one ready-to-use primary regulator setup. The environmentally sealed 9000 Series first stage provides Sherwood's A2-DC depth-compensation technology, while the Oasis Pro second stage uses the MRV system to retain moisture during breathing. Because the first stage, LP hose, and primary second stage are supplied together, the diver receives the core primary regulator assembly rather than separate loose components.