First & Second Stage Scuba Regulators

See : Used First & Second Stage Scuba Regulators (28)

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  • Regulator: Reliable non-balanced flow-by-piston design
  • Regulator: Marine-grade chromed brass first stage
  • Regulator: Venturi effect for enhanced performance
  • Octopus: Reliable Downstream Demand Valve
  • Complete Regulator w/Octopus
  • Compact, Reliable, and Performance
  • Mid-Size Stylish Second Stage
  • Chromed Marine Grade Brass
  • Meets CE Standard for Coldwater Performance
  • MAXFLEX Hose Reduces Jaw Fatigue
  • Nitrox Compatible to 40% Out-of-The-Box
  • Environmentally sealed 1st stage components
  • 1'st Stage Piston Regulator
  • Non-Balanced Flow-By Piston
  • Certified to EN250/2014
  • Conical Filter
  • Complete Regulator with Octopus
  • Second Stage: Mares Prestige
  • First-Stage: Mares 15X
  • Mares Prestige Octopus

  • Ribbed diaphragm clamp for improved heat exchange in cold water conditions
  • 5x Medium pressure ports, 4 mounted on a rotating turret for improved hose orientation
  • 2x Angled high pressure ports for optimal hose routing and fitting of transmitters
  • Ergonomic and simple to use venturi lever
  • MK25 EVO First Stage
  • S620 Ti Second Stage
  • State-of-the-Art Design
  • Ultimate Comfort
  • Pneumatically Balanced 2'nd Stage Design
  • Co-Molded Mouthpiece for Reduced Jaw Fatigue
  • Nitrox Compatible to 40% Oxygen
  • Dry Sealed Spring
  • Advanced regulator setup
  • Easy-to-read Mini Tech SPG
  • Environmentally sealed design
  • Streamlined hose routing

  • Unparalleled reliability and performance
  • Lightweight, perfect for travel
  • Nitrox ready up to 40%
  • Easy breathing at all depths
  • Reusable Mouthpiece Clamp
  • Great Regulator Package
  • Downstream Demand Valve 2'nd Stage
  • Requires Less-Maintenance
 

Scubapro MK11/C370 Regulator

SKU: SCPM11C370 MFR: 12.175.000

  • The Scubapro MK11 First Stage Regulator is perfect for recreational divers in temperate waters
  • The balanced diaphragm design offers smooth breathing and maximum performance
  • The Thermal Insulating System (TIS) keeps the first stage from freezing in cold water
  • The Scubapro C370 Second Stage Regulator features a balanced valve and improved exhaust tee
Atomic B2 Swivel Regulator
Top Rated Gear
Free Gift
 

Atomic B2 Swivel Regulator

SKU: ATMB2S MFR: 03-0027-3P

  • Unmatched comfort in ergonomically-designed B2
  • All-titanium second stage for lightweight use
  • Reliable seat system for low maintenance
  • Balanced linear flow for easy breathing
  • Dependable non-balanced flow-by-piston design
  • Marine grade chromed brass 1st stage with 1 HP port and 4 LP ports
  • Durable non-corrosive hi-tech polymers 2nd stage with downstream demand valve
  • Venturi effect enhances regulator performance
Atomic Z3 Sealed Regulator, DIN
Top Rated Gear
 

Atomic Z3 Sealed Regulator, DIN

SKU: ATMZ3SD MFR: 03-0090-7P

  • Compact and economical DIN sealed regulator
  • Nitrox ready for mixtures up to 40%
  • The most reliable seat system in the industry
  • Optimum breathing resistance at all depths
Scubapro MK25 EVO/A700 Regulator
Top Rated Gear
 

Scubapro MK25 EVO/A700 Regulator

SKU: SCPM25EA70 MFR: 12.770.040

  • Ultra-high airflow for peak performance
  • Balanced piston for stable air delivery
  • Enhanced cold-water diving with XTIS
  • A700: Handcrafted, full metal design
  • Dive in comfort with Aqualung's Leg3nd Elite regulator line
  • Radial openings and air purge provide ease of use in any conditions
  • Ergonomic yoke screw and soft grip make installation a breeze
  • Three anti-freeze features ensure optimal performance in cold water

Scubapro MK25 EVO/A700 Regulator, DIN
Top Rated Gear
 

Scubapro MK25 EVO/A700 Regulator, DIN

SKU: SCPM25EA70D MFR: 12.770.040DIN

  • Performance Built
  • All Metal Casing & Valve Housing
  • Larger Diaphragm
  • More Breathing Sensitivity
  • Lower Work of Breathing
  • More Compact & Lighter Weight than S600
  • Air-Balanced Valve Technology for Effortless Airflow
  • Corrosion-Free Titanium Inlet Tube
  • Reliable non-balanced flow-by-piston design
  • Comfortable silicone mouthpiece
  • Marine-grade chromed brass first stage
  • Venturi effect for enhanced performance

Available in 2 colors

  • inherent Build Quality & Performance
  • Over Balanced Diaphragm 1'st Stage
  • Pneumatically Balanced 2'nd Stages
  • Machined First Stage Regulator

Available in 2 colors

  • Effortless breathing performance
  • Rugged metal housing for reliability
  • Versatile hose attachment options
  • High-viz hose with oversized bore
  • Improved exhalation effort & ease of use
  • Smooth, surface-like breathing experience
  • Ultimate rigging flexibility with LP hose
  • Reversible hose attachment for versatility
  • Pneumatically Balanced 2'nd Stage Design
  • Nitrox Compatible to 40% Oxygen
  • Dry Sealed Spring
  • Mechanically Balanced Flow-By-Piston
Didn't find what you're looking for?

Shop our selection of first and second stage regulators to find the perfect piece of equipment for your next dive. Our regulators are designed to be durable and easy to use.