First Stage Scuba Regulators & Second Stage Regulators

Save 5% Every Day† with the Scuba.com Edge Card. Learn More

edge card
Shop Used  (21)
Categories:All CategoriesRegulators
First & Second Stages
Brand
Price Range
to
Ratings & Reviews
& up(102)
& up(102)
& up(100)
& up(100)
& up(98)
& up(98)
& up(94)
& up(94)
(52)
Filter By
Discount
Configuration
Special Features
First Stage Type
HP Ports
By Activity
LP Ports
reviews
Cressi AC2/XS2 Regulator Picture

Cressi AC2/XS2 Regulator

SKU: CSBRXS2MFR: HX780000
(57)
  • Cressi XS2/AC2: Reliable scuba regulator system.
  • Dive/Pre-Dive Venturi: Adjustable 2nd stage regulator.
  • Durable chromed brass 1st stage for long life.
  • Compact, lightweight regulator: 35oz with hose.
  • Downstream demand valve: Easy, natural breathing.
  • 4 LP ports, 1 HP port: Streamline hose routing.
Scuba.com's Choice
$219.95
$289.95
Save: $70.00 (24%)
$37/mo suggested payments with 6‑month special financing. Learn how.
In Stock
Free Shipping
Ways to Save
Aqualung Helix DIN Regulator w Picture

Aqualung Helix DIN Regulator with Octopus

SKU: UDRHDOMFR: 706026BKBKDIN
(1)
  • Aqualung Helix regulator: reliable scuba gear.
  • Balanced 2nd stage ensures effortless breathing.
  • Durable build for years of dependable scuba dives.
  • Compact regulator design enhances ease of use.
  • Cold-water rated regulator for extreme conditions.
  • Nitrox compatible regulator, up to 40% O2.
In Stock
Free Shipping
Ways to Save
Cressi AC2/XS2 Regulator & XS2 Picture

Cressi AC2/XS2 Reg & Octo XS2

SKU: PCKXS2MFR: PCKXS2
(9)
  • Cressi Regulator Package: Trusted brand quality.
  • XS2/AC2 Scuba Package: Includes 2-year warranty.
  • Complete Regulator Set: Excellent package price.
  • Dive confidently: High-performance scuba package.
  • Cressi Octopus Package: Enhanced safety features.
  • Quality Scuba Gear: Durable, reliable regulator.
In Stock
Free Shipping
Ways to Save
Scuba Regulator & Octo Grab Ba Picture

Scuba Regulator & Octo Grab Bag

SKU: SCBR1OMFR: SCBR1O
(15)
  • Pneumatically Balanced 2'nd Stage Design
  • Nitrox Compatible to 40% Oxygen
  • Dry Sealed Spring
  • Mechanically Balanced Flow-By-Piston
  • Co-Molded Mouthpiece for Reduced Jaw Fatigue
  • Reliable Downstream Demand Valve Octopus
Scuba.com Exclusive
$379.95
$514.90
Save: $134.95 (26%)
$64/mo suggested payments with 6‑month special financing. Learn how.
In Stock
Free Shipping
Ways to Save
Scuba Regulator Grab Bag Picture

Scuba Regulator Grab Bag

SKU: SCBR1MFR: SCBR1
(8)
  • Pneumatically Balanced 2'nd Stage Design
  • Nitrox Compatible to 40% Oxygen
  • Dry Sealed Spring
  • Mechanically Balanced Flow-By-Piston
  • Co-Molded Mouthpiece for Reduced Jaw Fatigue
Scuba.com Exclusive
$264.95
$364.00
Save: $99.05 (27%)
$45/mo suggested payments with 6‑month special financing. Learn how.
In Stock
Free Shipping
Ways to Save
Mares Prestige 15X Regulator Picture

Mares Prestige 15X Regulator

SKU: MRSPR15XGRMFR: 416234 BKGR
(2)
  • Mares regulator: Reliable downstream second stage.
  • Prestige 15X: Balanced diaphragm 1st stage design.
  • Nitrox ready: Up to 40% O2 compatibility included.
  • Scuba regulator: Four 3/8" LP ports for versatility.
  • Durable build: Chromed brass, techno-polymer design.
  • Lightweight regulator: Travel-friendly, only 34 ounces.
In Stock
Free Shipping
Ways to Save
Scubapro MK11 EVO/R105 DIN Div Picture

Scubapro MK11 EVO/R105 DIN Dive Regulator System

SKU: SCPR105DIMFR: 12.106.300
  • Robust air delivery ensures diving durability.
  • Reliable first and second stages for safety.
  • Effortless breathing for underwater comfort.
  • Durable diaphragm first stage design.
  • Optimal performance; minimal maintenance needs.
  • Lightweight for enhanced diving comfort.
In Stock
Free Shipping
Ways to Save
Scubapro MK11 EVO/C370 DIN Div Picture

Scubapro MK11 EVO/C370 DIN Dive Regulator System

SKU: SCPMK11DRSDMFR: 12.176.300
  • Optimal air delivery for effortless breathing.
  • Durable dive regulator for sustained performance.
  • Experience balanced airflow and easy breathing.
  • Lightweight Scubapro system; reduced jaw fatigue.
  • Reliable cold-water ready dive performance.
  • Adjustable second stage ensures comfort.
In Stock
Free Shipping
Ways to Save
Mares Prestige 15X and Prestig Picture

Mares Prestige 15X Reg and Octo Package

SKU: MRSPKPRGYMFR: MRSPKPRGY
  • Balanced diaphragm first stage for reliability.
  • Downstream demand second stage for ease breathing.
  • Chromed brass construction ensures durability.
  • Techno-polymer second stage offers comfort.
  • Four low-pressure ports for diverse setup.
  • Nitrox compatible for enriched air diving.
In Stock
Free Shipping
Ways to Save
Aqualung Leg3nd MBS Regulator Picture

Aqualung Leg3nd MBS Regulator with Legend Octopus

SKU: UDRLMYOPMFR: 706022BKBKINT
  • Aqualung Leg3nd: Reliable scuba regulator system.
  • Balanced regulator ensures effortless breathing.
  • Adjustable 2nd stage for personalized comfort.
  • Compact scuba gear: Lightweight & travel-friendly.
  • Cold-water regulator with environmental dry kit.
  • Dive confidently with balanced pressure design.
Bundle & Save
$1,070.99
$1,259.00
Save: $188.01 (15%)
$90/mo suggested payments with 12‑month special financing. Learn how.
In Stock
Free Shipping
Ways to Save
Hollis 150LX DC7 Regulator wit Picture

Hollis 150LX DC7 Regulator with Gauge and Hose

SKU: PCKDHRP2
  • Hollis 150LX regulator ensures reliable performance.
  • Enjoy easy breathing with this balanced scuba regulator.
  • Dive confidently; regulator is cold-water rated.
  • Compact scuba regulator design for streamlined diving.
  • Adjustable 2nd stage for personalized dive control.
  • Nitrox compatible regulator; up to 40% oxygen.
In Stock
Free Shipping
Ways to Save
Scubapro MK25 EVO/S620 Ti Whit Picture

Scubapro MK25 EVO/S620Ti White Regulator

SKU: SCP12620010MFR: 12.620.010
  • Scubapro Regulator: Reliable, Easy Breathing System.
  • Dive Regulator with Adjustable Second Stage Included.
  • Cold-Water Rated Scuba Regulator for Extreme Dives.
  • Durable Scubapro Regulator with Titanium Components.
  • Compact Dive Regulator: Lightweight, Travel-Friendly.
  • High-Performance Scuba Regulator for Confident Dives.

Includes Free

$229.00Value:

Scubapro R105 OctoScubapro R105 Octo
In Stock
Free Shipping
Ways to Save

Includes Free

$229.00Value:

Scubapro R105 OctoScubapro R105 Octo
Cressi AC2 Compact Yoke Regula Picture

Cressi AC2 Compact Yoke Regulator

SKU: CSBACMFR: HX787051
  • Cressi Regulator: Reliable scuba gear, compact size.
  • Balanced flow-by piston ensures effortless breathing.
  • Adjustable 2nd stage for optimal dive performance.
  • Durable chromed brass 1st stage, polymer 2nd stage.
  • Compact XS2 regulator: Lightweight, easy servicing.
  • Ideal scuba regulator for warm water environments.
In Stock
Free Shipping
Ways to Save
Aqualung Leg3nd Elite Black Ed Picture

Aqualung Leg3nd Elite Black Edition Stage 3 Yoke Regulator Set

SKU: UDRLELEOPMFR: 706024BKBKINT
  • Aqualung Leg3nd regulator: superior reliability.
  • Balanced regulator ensures effortless breathing.
  • Dive confidently: cold-water rated regulator set.
  • Adjust your regulator for optimal performance.
  • Compact scuba regulator: travel with ease.
  • Includes Leg3nd Elite & Supreme Octopus for safety.
Bundle & Save
$1,299.95
$1,599.00
Save: $299.05 (19%)
$109/mo suggested payments with 12‑month special financing. Learn how.
In Stock
Free Shipping
Ways to Save
Atomic Aquatics B2X DIN Regula Picture

Atomic Aquatics B2X DIN Regulator

SKU: ATMB2XDUMFR: 03-0028-4P
  • Atomic Aquatics B2x Regulator: Reliable, durable scuba gear
  • Experience effortless breathing with the Atomic Aquatics B2x regulator, designed for ultimate comfort
  • Smooth, effortless breathing with this regulator
  • Compact scuba regulator for ease of use underwater
  • Titanium regulator with DLC coating for durability
  • First and second stage regulator set for diving
In Stock
Free Shipping
Ways to Save
Mares Atlas ADJ 62X TBP Diving Picture

Mares Atlas ADJ 62X TBP Diving Regulator

SKU: MRSATLAS
  • Mares regulator: balanced diaphragm 1st stage.
  • All Metal Technology ensures diving regulator reliability.
  • Enjoy easy breathing with the Mares Atlas ADJ regulator.
  • Compact regulator design with adjustable second stage.
  • 2 HP & 4 LP ports offer balanced regulator performance.
  • Superflex hose included for diving regulator comfort.
In Stock
Free Shipping
Seac PX100 230 Yoke Regulator Picture

Seac PX100 230 Yoke Regulator with Octopus

SKU: SECSP230IMFR: 0350097000004A
  • Seac INT regulator: reliable scuba gear, explore depths.
  • Adjustable 2nd stage ensures easy, comfortable breathing.
  • Cold-water rated regulator for diving in all conditions.
  • Durable, compact scuba regulator: built to last dives.
  • Venturi effect dive switch for optimal adjustability.
  • High-performance regulator with braided, coated hose.
In Stock
Free Shipping
Ways to Save
Aqualung Leg3nd Elite Black Ed Picture

Aqualung Leg3nd Elite Black Edition Yoke Regulator

SKU: UDRLELEMFR: 706013BKBKINT
  • Aqualung Leg3nd: Superior, reliable regulator.
  • Overbalanced diaphragm 1st stage for optimal scuba.
  • Pneumatically balanced 2nd stage ensures easy breathing.
  • Adjustable venturi switch on this scuba regulator.
  • Compact regulator design; cold-water ready system.
  • Lifetime warranty on Aqualung scuba regulators.
In Stock
Free Shipping
Ways to Save
Cressi MC9 Compact Regulator & Picture

Cressi MC9 Compact Regulator & Octo Package

SKU: CSBX9SKMFR: WHY783051
  • Precise Air Delivery; consistent, reliable flow.
  • Superior Durability ensures extended product lifespan.
  • Effortless Breathing performance enhances dive safety.
  • Engineered Reliability; robust and consistent function.
  • Low Maintenance design reduces upkeep requirements.
  • Lightweight construction offers comfort and portability.
In Stock
Free Shipping
Ways to Save
Dive Rite FT1/XT2 Regulator wi Picture

Dive Rite FT1/XT2 Regulator with 28" Hose

SKU: DIVFT1RMFR: RG5800-YOKE
  • Superior air delivery ensures reliable performance.
  • Durable black DLC-coated brass resists corrosion.
  • Effortless breathing maintains diver comfort.
  • Optimized for minimal maintenance requirements.
  • Precision-engineered for ultimate diving reliability.
  • Balanced diaphragm design for consistent airflow.
In Stock
Free Shipping
Ways to Save
Apeks XL4 Ocea Regulator Picture

Apeks XL4 Ocea Regulator

SKU: APX4OR
  • Apeks XL4 Ocea: Reliable scuba regulator system.
  • Dive confidently: Easy-breathing regulator design.
  • Cold-water rated regulator for extreme dives.
  • Durable build: Long-lasting scuba gear regulator.
  • Adjustable 2nd stage for optimal performance.
  • Compact, lightweight regulator: Travel-friendly.
In Stock
Free Shipping
Hollis 200LX Second Stage Only Picture

Hollis 200LX Second Stage Only w/o Hose, Black

SKU: HLSSS200MFR: 240.2000.LX
  • Hollis 200LX: Reliable scuba regulator performance.
  • Pneumatically balanced 2nd stage for easy breathing.
  • Adjustable inhalation knob ensures custom diving.
  • Compact, durable build with PVD coated brass valve.
  • Cold-water rated regulator for extreme conditions.
  • Streamlined scuba gear: Simple to service, maintain.
Available
Free Shipping
Ways to Save
Aqualung Titan DIN Regulator Picture

Aqualung Titan DIN Regulator

SKU: UDRTRNDMFR: 706008BKBKDIN
  • Diaphragm 1st stage ensures consistent air delivery.
  • Robust marine brass construction enhances durability.
  • Unbalanced 2nd stage offers ease breathing underwater.
  • Lightweight design optimizes comfort for divers.
  • Reliable performance for demanding dive conditions.
  • Intuitive controls simplify maintenance and usage.
On Backorder
Free Shipping
Ways to Save
Apeks Tek3 Lh + Rh 1St Stages Picture

Apeks Tek3 Lh + Rh 1St Stages

SKU: APXTRSMFR: 726057BCBKDIN
  • Apeks regulator: reliable, high-performance scuba gear.
  • First stage regulator: exceptional cold-water rated use.
  • DIN fitting ensures a secure, durable regulator.
  • Compact size: streamlined scuba regulator design.
  • Low breathing effort: regulator for effortless dives.
  • Tek3 first stages: rugged, dependable scuba regulators.
On Backorder
Free Shipping
Ways to Save
Pageof 10
Per Page
24