First Stage Scuba Regulators & Second Stage Regulators

222 results

Shop Used (19)

First & Second Stages

Apeks (22)Aqualung (23)Atomic Aquatics (20)Cressi (8)Dive Rite (11)Hollis (9)Mares (31)Scubapro (43)Seac (15)Sherwood (11)

Price Range

$100 to $250 (16)$250 to $500 (69)$500 to $750 (58)$750 to $1000 (35)$1000 to $2500 (43)$2500 to $5000 (4)

Bundle & Save (1)Free Shipping (222)In Stock (179)Kits only (30)Non-Kits (192)Recent Releases (6)Specials (33)Top Rated (75)

Discount

10% Off or More (69)25% Off or More (14)35% Off or More (8)50% Off or More (1)

Color

Black (210)Blue (7)Gold (1)Gray (14)Green (5)Red (6)Silver (134)White (7)Yellow (29)

Configuration

First & Second Stage Set (180)First Stage Only (25)Second Stage Only (18)

Special Features

Adjustable 2nd Stage (80)DIN Fitting (71)Environmentally Sealed (51)INT Fitting (26)Lightweight (54)O2 Ready (14)Swivel 2nd Stage (23)Titanium (17)

HP Ports

1 HP Port (30)2 HP Ports (167)

First Stage Type

Diaphragm (122)Piston (70)

LP Ports

3 LP Ports (2)4 LP Ports (117)5 LP Ports (73)6+ LP Ports (2)

By Activity

Military & Rescue (27)Scuba (28)

Mares Dual ADJ 62X INT Regulator, Black

SKU: MRSDA62BKIMFR: 416278BKBKINT

Precise air delivery for optimal breathing comfort.
Balanced diaphragm ensures reliable scuba performance.
Durable technopolymer build for lasting dive use.
Lightweight design for effortless underwater mobility.
Adjustable second stage enhances breathing ease.
Superflex hose offers exceptional maneuverability.

New Arrival

^$569^.95

$657.95

Save: $88.00 (13%)

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Mares R2S First Stage INT Regulator

SKU: MRS1SRBKIMFR: 416232INT

Robust piston design ensures dive reliability.
Streamlined for effortless underwater breathing.
Durable build guarantees long-lasting performance.
Simplified maintenance for hassle-free diving.
Lightweight design, perfect for dive travel.
Optimize airflow for superior dive comfort.

New Arrival

^$229^.95

$257.95

Save: $28.00 (11%)

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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.

New Arrival

^$359^.95

$397.95

Save: $38.00 (10%)

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Mares 15X First Stage DIN Regulator

SKU: MRS1S15ABKDMFR: 416237DIN

Exceptional Mares reliability for critical dives.
Balanced diaphragm ensures easy, smooth breathing.
Durable design offers extended regulator lifespan.
Effortless maintenance of this robust scuba gear.
Comfortable, lightweight scuba first stage (20.8oz).
Optimize dive comfort with quality 15X regulator.

New Arrival

^$359^.95

$397.95

Save: $38.00 (10%)

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Mares 82X First Stage INT Regulator

SKU: MRS1S82MFR: 416248INT

Unrivaled scuba reliability for confident dives.
Balanced diaphragm ensures effortless breathing performance.
Durable build guarantees long-lasting regulator safety.
Optimized design for simple, low-maintenance care.
Exceptional first stage comfort and secure fit.
Premium Mares engineering: 2 HP, 5 LP ports.

New Arrival

^$637^.95

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Mares 22 Navy II First Stage INT Regulator

SKU: MRS1S22RNVMFR: 416270INT

Optimal breathing with balanced diaphragm scuba regulator.
Engineered for reliability in extreme cold waters.
Durable construction ensures lasting dive performance.
Easy-to-maintain design for consistent scuba safety.
Advanced first stage offers superior air delivery.
Precision engineering for effortless breathing control.

New Arrival

^$449^.95

$499.95

Save: $50.00 (10%)

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Scubapro MK11 EVO/S270 Dive Regulator System

SKU: SCPS270

Scubapro regulator: reliable, durable build.
Balanced 2nd stage ensures effortless breathing.
Compact dive regulator, ideal for travel scuba.
Cold-water regulator: consistent performance.
Low maintenance scuba regulator system design.
Adjustable breathing for optimal dive control.

^$605^.00

In Stock

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Mares Rover 2S Regulator, DIN

SKU: MRSR2S2DMFR: 416255DIN

Mares regulator: reliable, downstream 2nd stage.
Balanced scuba regulator for optimal performance.
Compact regulator: lightweight, travel-friendly design.
Nitrox compatible regulator, up to 40% oxygen.
Adjustable Mares regulator for easy, smooth breathing.
Durable scuba gear: corrosion-resistant materials.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

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^$319^.95

$397.95

Save: $78.00 (20%)

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$29.95Value:

Scuba.com Round Regulator Bag

Scubapro Mark 2 EVO DIN Regulator, 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.

Top Rated Gear

^$304^.00

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Scubapro A700 Regulator, Second Stage Only

SKU: SCPA700MFR: 11.700.000

(5)

Scubapro A700: Reliable regulator for diving.
Dive regulator: Effortless breathing, metal case.
Compact second stage: Lightweight, durable build.
Adjustable VIVA: Scubapro regulator performance.
Regulator with easy maintenance, long-lasting.
Scubapro: Cold-water regulator, 3/8" hose.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$769^.00

$798.95

Save: $29.95 (4%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Scubapro MK25 EVO/A700 Regulator

SKU: SCPM25EA70MFR: 12.770.040

(6)

Scubapro regulator: reliable, balanced piston 1st stage.
A700 2nd stage: adjustable for optimal breathing effort.
Dive regulator system: durable brass, marine-grade chrome.
Cold water regulator: anti-freeze for extreme conditions.
High-flow regulator: 5 LP ports, 2 HP ports included.
Scubapro MK25 EVO/A700: compact, lightweight design.

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^$1254^.00

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Scubapro S600 Regulator, Second Stage Only

SKU: SCPS600NMFR: 11.603.000

(5)

Scubapro S600: Reliable regulator for diving.
Air balanced valve ensures effortless breathing.
Durable techno-polymer case for long life.
Adjustable 2nd stage for personalized comfort.
Compact, lightweight second stage regulator.
Scubapro regulator: Dive with confidence today.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$602^.00

$631.95

Save: $29.95 (5%)

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

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).

Top Rated Gear

^$449^.95

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Aqualung Helix Compact Pro Din Regulator

SKU: UDRHCPDMFR: RG154003

Aqualung Regulator: Reliable, smooth, easy breathing.
Compact Pro DIN: Lightweight regulator for travel dives.
Cold-Water Rated: Dive confidently in any condition.
Pneumatically Balanced: Consistent performance at depth.
Helix Regulator: Durable build, lifetime warranty included.
First & Second Stage: Complete regulator system ready.

Save $168

^$530^.95

$699.00

Save: $168.05 (24%)

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Scubapro S620 Ti Regulator, Second Stage Only

SKU: SCPS620TMFR: 11.620.000

(2)

Scubapro S620 Ti: Reliable second stage regulator.
Air balanced valve ensures effortless breathing.
Titanium & polymer build for lasting durability.
Adjustable dive/pre-dive switch for ease of use.
Compact, lightweight design: only 6.3 ounces.
Scubapro regulator: Lifetime limited warranty.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$689^.00

$718.95

Save: $29.95 (4%)

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Scubapro MK25 EVO DIN 300/S620Ti Dive Regulator System

SKU: SCPM25ES620DMFR: 12.620.300

(1)

Scubapro Regulator: Reliable, high-performance system.
Balanced 2nd Stage: Effortless, easy breathing at depth.
Cold-Water Rated: Dive confidently in any environment.
Adjustable Dive Regulator: Customize your breathing.
Compact Scuba Regulator: Lightweight for travel ease.
Titanium Components: Durable, corrosion-resistant build.

Top Rated Gear

^$1185^.00

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Sherwood Magnum Pro Regulator

SKU: SWDRMPMFR: SRB9350

(3)

Sherwood regulator: reliable, balanced piston 1st stage.
Adjustable 2nd stage for optimal breathing effort.
Durable, marine-grade brass Sherwood scuba regulator.
Nitrox compatible regulator, up to 40% oxygen blend.
Compact regulator design with dive/pre-dive switch.
2 HP ports & 4 LP ports for versatile hose routing.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$239^.00

$424.95

Save: $185.95 (44%)

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Scubapro R105 Regulator, Second Stage Only

SKU: SCPR105RMFR: 11.332.000

Scubapro R105: Reliable second stage regulator.
Downstream valve ensures easy, consistent breathing.
Compact Scubapro regulator; travel-friendly design.
Ideal for novice divers & diving center environments.
Enjoy Scubapro's lifetime limited regulator warranty.
Durable regulator built for years of diving use.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$229^.00

$258.95

Save: $29.95 (12%)

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Atomic Aquatics T3 Titanium Swivel Sealed Regulator, DIN

SKU: ATMT3RDMFR: 03-0100-7P

(3)

Atomic Aquatics T3 Regulator: Unrivaled breathing effort
Experience effortless breathing with the Atomic Aquatics T3 regulator, crafted for ultimate reliability
Titanium regulator: Lightweight, durable design
Sealed regulator: Ensures cold-water performance
DIN regulator: First & second stage regulator set
Adjustable 2nd stage: Customize your dive easily

Top Rated Gear

^$2369^.95

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Seac IT500 ICE 230 INT Regulator

SKU: SECIT230MFR: 0350110002004A

Reliable Seac Regulator: Consistent performance.
Cold Water Scuba Regulator: Certified EN250A.
Balanced Diaphragm 1st Stage: Hot-forged design.
Adjustable 2nd Stage: Venturi effect control.
Durable Scuba Gear: Matt chrome finish, robust build.
Easy Maintenance Regulator: Dive/Pre-Dive switch.

Save $116

^$463^.20

$579.00

Save: $115.80 (20%)

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Atomic Aquatics Z3 Regulator Yoke

SKU: ATMZ3RYMFR: 03-0090-3P

(4)

Atomic Aquatics Z3 Regulator: Superior breathing performance
Breathe easy with the Atomic Aquatics Z3 regulator, designed for smooth, reliable air delivery underwater
Durable scuba gear: Corrosion-resistant materials used
Compact regulator design: Lightweight for travel
Easy maintenance regulator: Simplified service needs
Cold-water regulator: Reliable in all conditions

Top Rated Gear

^$719^.95

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