First Stage Scuba Regulators & Second Stage Regulators

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

edge card
Shop Used  (22)
Categories:All CategoriesRegulators
First & Second Stages
Brand
Price Range
to
Ratings & Reviews
(57)
& up(135)
& up(144)
& up(146)
& up(147)
Filter By
Discount
Color
Configuration
Special Features
First Stage Type
By Activity
HP Ports
LP Ports
Cressi MC11 Zen Regulator Yoke Picture

Cressi MC11 Zen Regulator Yoke

SKU: CRBMC11MFR: HX791011
  • Experience balanced breathing with diaphragm first stage.
  • Engineered for exceptional air delivery, ensuring safety.
  • Durable design offers enduring performance underwater.
  • Achieve optimal ease of breathing, enhancing dives.
  • Dependable regulator reliability for consistent function.
  • Low maintenance; streamlined design ensures longevity.
In Stock
Free Shipping
Ways to Save
Cressi MC11 SC Zen Pro Regulat Picture

Cressi MC11 SC Zen Pro Regulator DIN

SKU: CRBMC11SCDSLMFR: HX793151
  • Durable hyperbalanced diaphragm delivers reliability.
  • Superior air delivery, effortless breathing performance.
  • Robust construction ensures exceptional regulator durability.
  • Lightweight design enhances dive comfort and portability.
  • Efficient breathing system, minimal maintenance required.
  • Environmental sealing optimizes cold water reliability.
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
Dive Rite XT1/XT4 Regulator wi Picture

Dive Rite XT1/XT4 Regulator with 28" Hose

SKU: DIVXT1RMFR: RG6000-YOKE
  • Superior reliability and air delivery underwater.
  • Durable black DLC-coated brass 1st stage ensures longevity.
  • Balanced diaphragm 1st stage for consistent performance.
  • Pneumatically balanced 2nd stage for ease breathing.
  • Optimized port configuration for versatile hose routing.
  • Robust construction guarantees minimal maintenance.
In Stock
Free Shipping
Ways to Save
Scubapro MK19 EVO BT/G260 Carb Picture

Scubapro MK19 EVO BT/G260 Carbon BT Regulator

SKU: SCPDIN300MFR: 12.719.600
  • Scubapro regulator: cold-water rated, reliable system.
  • Dive regulator with adjustable 2nd stage for easy breathing.
  • Durable Scubapro regulator: built with carbon fiber.
  • Compact first and second stage regulator system.
  • High-performance dive regulator with DIN connector.
  • Scubapro regulator: balanced valve for smooth airflow.
In Stock
Free Shipping
Ways to Save
Apeks TEK3 Regulator Set Picture

Apeks TEK3 Regulator Set

SKU: APXT3RSMFR: 726017 BCBKDIN
  • Apeks TEK3: Superior regulator breathing effort.
  • Over-balanced diaphragm: Reliable scuba regulator.
  • Chrome-plated brass: Durable first stage regulator.
  • Adjustable 2nd stage: Easy dive/pre-dive control.
  • Nitrox compatible: Up to 40% O2 scuba gear.
  • Compact regulator: Streamlined for ease of use.
In Stock
Free Shipping
Ways to Save
OMS Evoque 2nd Stage Only (No Picture

OMS Evoque 2nd Stage Only (No Hose)

SKU: OMSRESSMFR: OM50013
(4)
  • OMS Evoque: Reliable scuba regulator 2nd stage.
  • Adjustable 2nd stage: Dive/Pre-Dive Venturi switch.
  • Pneumatically balanced for easy, natural breathing.
  • Compact, impact-resistant regulator construction.
  • Chromed brass internals ensure regulator serviceability.
  • Upgrade your scuba gear with this OMS 2nd stage.
In Stock
Free Shipping
Ways to Save
Atomic Aquatics B2 Regulator, Picture

Atomic Aquatics B2 Regulator, DIN

SKU: ATMB2SDMFR: 03-0027-4P
  • Atomic Aquatics B2 Regulator: Superior breathing performance
  • Experience effortless breathing with this Atomic Aquatics B2 regulator, designed for ultimate comfort
  • Durable titanium second stage for reliability underwater
  • Compact scuba regulator design; lightweight & balanced
  • Adjustable 2nd stage ensures effortless air delivery
  • Nitrox compatible regulator, up to 40% oxygen blends
In Stock
Free Shipping
Ways to Save
Scubapro Mark 2 EVO Regulator Picture

Scubapro Mark 2 EVO DIN, First Stage Only

SKU: SCPM2EDMFR: 10.063.300
(2)
  • Scubapro Regulator: Reliable, durable build quality.
  • Dive Regulator: Consistent airflow at any depth.
  • First Stage Regulator: Compact, lightweight design.
  • Scubapro First Stage: Balanced pressure for easy breathing.
  • DIN Regulator: 4 LP ports & 1 HP port included.
  • Scuba Regulator: Chromed brass for saltwater durability.
In Stock
Free Shipping
Ways to Save
Scubapro MK25 Evo BT/G260 Carb Picture

Scubapro MK25 EVO BT/G260 Carbon Regulator

SKU: SCPM25EBG26BMFR: 12.771.550
  • Scubapro regulator: reliable, balanced piston 1st stage.
  • G260 carbon 2nd stage ensures effortless breathing.
  • Dive confidently with adjustable venturi & resistance.
  • Cold water ready regulator for extreme environments.
  • Durable, lightweight regulator with carbon fiber cover.
  • High-flow ports offer superior regulator performance.
In Stock
Free Shipping
Ways to Save
TUSA RS-790 Regulator Picture

TUSA RS-790 Regulator

SKU: TBTRS790MFR: RS-790-BK
  • TUSA RS-790: Reliable regulator for diving.
  • Balanced diaphragm 1st stage ensures performance.
  • Enjoy effortless breathing with balanced 2nd stage.
  • Durable build: Chromed brass & composite design.
  • Nitrox compatible regulator, up to 40% oxygen.
  • Compact scuba regulator, easy to maintain.
In Stock
Free Shipping
Ways to Save
Scubapro MK25 EVO/S600 Regulat Picture

Scubapro MK25 EVO/S600 Regulator, DIN

SKU: SCPM25EDS60MFR: 12.971.070
  • Scubapro Regulator: Superior, reliable breathing effort.
  • MK25 EVO/S600: Durable regulator for any dive type.
  • Adjustable 2nd Stage: Customize your dive experience.
  • Cold-Water Rated: Scuba regulator performs in all temps.
  • High-Flow Ports: Maximize air delivery with this regulator.
  • Scubapro Regulator: Compact, travel-friendly scuba gear.
In Stock
Free Shipping
Ways to Save
Hollis 500SE DC7 Regulator wit Picture

Hollis 500SE DC7 Regulator with Gauge and Hose

SKU: PCKDHRP3
  • Balanced Diaphragm ensures reliable scuba gear.
  • Adjustable 2nd stage for optimal breathing effort.
  • Marine-grade brass offers regulator durability.
  • Nitrox compatible up to 40% for versatile diving.
  • Compact regulator design with dive/pre-dive switch.
  • Cold-water performance with environmentally sealed 1st
In Stock
Free Shipping
Ways to Save
Mares 15X First Stage INT Regu Picture

Mares 15X First Stage INT Regulator

SKU: MRS1S15UBKIMFR: 416237INT
  • Optimal Scuba diving safety and performance.
  • Reliable air delivery for deep water dives.
  • Effortless breathing comfort and diaphragm tech.
  • Durable design for extreme dive conditions.
  • Low-maintenance scuba regulator for divers.
  • Enhanced diving experience, unmatched comfort.
In Stock
Free Shipping
Ways to Save
Zeagle Envoy II DIN Regulator Picture

Zeagle Envoy II DIN Regulator

SKU: ZGLEDNMFR: 350-3320
(2)
  • Zeagle Envoy II regulator: reliable scuba gear.
  • Balanced diaphragm 1st stage for consistent airflow.
  • Adjustable 2nd stage: Dive/Pre-Dive Venturi switch.
  • Nitrox compatible regulator, up to 40% O2 ready.
  • Durable chrome-plated brass, stainless steel build.
  • Compact & lightweight regulator: 3.22 lbs (1.46 kg).
In Stock
Free Shipping
Ways to Save
Scubapro MK2 EVO/S270 Regulato Picture

Scubapro MK2 EVO/S270 Regulator

SKU: SCPM2ES270MFR: 12.127.000
  • Scubapro regulator ensures reliable, effortless breathing.
  • Compact regulator design for easy servicing & travel.
  • Durable Scubapro regulator built for long-lasting use.
  • Cold-water rated regulator for diving in all conditions.
  • First & second stage regulator with dive/pre-dive switch.
  • Scubapro regulator: Four LP ports, one HP port included.
In Stock
Free Shipping
Ways to Save
Scubapro MK19 EVO BT/G260 Carb Picture

Scubapro MK19 EVO BT/G260 Carbon BT Regulator

SKU: SCPMK19MFR: 12.719.500
(1)
  • Scubapro regulator: cold-water rated, reliable system.
  • Enjoy easy breathing with balanced second stage design.
  • Compact Scubapro dive regulator; lightweight & durable.
  • Adjustable 2nd stage for personalized dive experience.
  • Black Tech brass 1st stage ensures regulator serviceability.
  • Scubapro regulator with carbon fiber 2nd stage cover.
In Stock
Free Shipping
Ways to Save
Scubapro MK2 EVO/S270 Regulato Picture

Scubapro MK2 EVO/S270 Regulator, DIN

SKU: SCPM2ES270DMFR: 12.127.300
  • Scubapro Regulator: Reliable, durable scuba gear.
  • Dive Regulator: Easy breathing for underwater exploration.
  • Adjustable 2nd Stage: Customize your dive experience.
  • Cold-Water Rated Regulator: Confident diving in any temp.
  • Compact Scuba Regulator: Lightweight, travel-friendly design.
  • Durable Scubapro Regulator: Built to last a lifetime.
In Stock
Free Shipping
Ways to Save
Scubapro MK25 EVO/S620 Ti Whit Picture

Scubapro MK25 EVO DIN 300/S620Ti Dive Regulator System - White

SKU: SCP12620030MFR: 12.620.030
  • Scubapro regulator: reliable, balanced design.
  • Enjoy easy breathing with this dive regulator.
  • Cold-water rated regulator for extreme dives.
  • Compact scuba regulator: travel-friendly size.
  • Adjustable 2nd stage for custom dive settings.
  • Premium regulator with titanium components.
In Stock
Free Shipping
Ways to Save
Apeks XTX40/DS4 DIN Oxygen Reg Picture

Apeks XTX40/DS4 DIN Oxygen Regulator

SKU: APXXTX4DS4DMFR: 726001BCGNNX
  • Apeks XTX40 regulator: reliable, balanced design.
  • Enjoy effortless breathing with this scuba regulator.
  • Cold-water rated regulator for extreme diving environments.
  • Durable Apeks regulator: built to last for years.
  • Compact scuba regulator: travel-friendly design.
  • Adjustable regulator: customize your dive experience.
In Stock
Free Shipping
Ways to Save
Dive Rite FT1/XT2 Advanced Ope Picture

Dive Rite FT1/XT2 Advanced Open Water Package

SKU: DIVPK5800
  • Dive Rite regulator: Reliable, balanced diaphragm.
  • Adjustable 2nd stage for easy, custom breathing.
  • Nitrox compatible regulator, up to 40% oxygen.
  • Durable marine brass 1st stage, chrome plated.
  • Compact regulator bag included for travel, storage.
  • Cold-water rated regulator for optimal performance.
In Stock
Free Shipping
Seac IT300 230 INT Regulator Picture

Seac IT300 230 INT Regulator

SKU: SECIT300IMFR: 0350105000004A
  • Seac IT300 INT Regulator: Reliable scuba gear.
  • Balanced diaphragm 1st stage ensures consistent airflow.
  • Adjustable 2nd stage with Venturi dive/pre-dive switch.
  • Chrome-plated finish enhances regulator durability.
  • Certified EN250 A for cold water scuba diving.
  • 2 HP ports & 4 LP ports for versatile configuration.
In Stock
Free Shipping
Ways to Save
Apeks XTX40 DS4 Regulator - Di Picture

Apeks XTX40 DS4 Regulator - Din

SKU: APXXDRDMFR: 726003BCBKDIN
  • Apeks XTX40: Reliable scuba regulator for all.
  • Over-balanced first stage ensures consistent airflow.
  • Enjoy effortless breathing with venturi assist.
  • 2 HP ports & 4 LP ports for versatile configuration.
  • Durable build for years of dependable scuba dives.
  • Compact, cold water ready regulator design.
In Stock
Free Shipping
Ways to Save
Seac IT300 300 DIN Regulator Picture

Seac IT300 300 DIN Regulator

SKU: SECIT300DMFR: 0350105000005A
  • Seac IT300 DIN Regulator: Reliable scuba gear.
  • Balanced diaphragm 1st stage for consistent airflow.
  • Adjustable 2nd stage with Venturi Dive/Pre-Dive.
  • Cold water certified regulator for extreme dives.
  • Chrome-plated finish ensures regulator durability.
  • 2 HP ports & 4 LP ports for versatile configuration.
In Stock
Free Shipping
Ways to Save
Pageof 10
Per Page
24