First Stage Scuba Regulators & Second Stage Regulators

220 results

Shop Used (9)

First & Second Stages

Apeks (21)Aqualung (24)Atomic Aquatics (20)Cressi (8)Dive Rite (10)Hollis (9)Mares (24)Scubapro (45)Seac (15)Sherwood (11)

Price Range

$100 to $250 (12)$250 to $500 (78)$500 to $750 (53)$750 to $1000 (33)$1000 to $2500 (43)$2500 to $5000 (4)

Bundle & Save (1)Free Shipping (220)In Stock (179)Kits only (33)Non-Kits (187)Recent Releases (3)Specials (39)Top Rated (76)

Discount

10% Off or More (74)25% Off or More (25)35% Off or More (11)50% Off or More (1)

Color

Black (208)Blue (7)Gold (1)Gray (14)Green (5)Red (6)Silver (130)White (8)Yellow (31)

Configuration

First & Second Stage Set (181)First Stage Only (21)Second Stage Only (16)

Special Features

Adjustable 2nd Stage (81)DIN Fitting (72)Environmentally Sealed (52)INT Fitting (19)Lightweight (55)O2 Ready (11)Swivel 2nd Stage (22)Titanium (16)

HP Ports

1 HP Port (29)2 HP Ports (163)

First Stage Type

Diaphragm (116)Piston (69)

LP Ports

3 LP Ports (2)4 LP Ports (119)5 LP Ports (65)6+ LP Ports (2)

By Activity

Military & Rescue (27)Scuba (20)

Scubapro MK11 EVO/R105 Dive Regulator System

SKU: SCPR105

Scubapro regulator ensures reliable scuba diving.
Enjoy easy breathing with this dive regulator system.
Compact scuba regulator for travel convenience.
Durable regulator built for cold water diving.
Adjustable Scubapro regulator for optimal airflow.
First and second stage regulator for scuba gear.

New Arrival

^$570^.00

In Stock

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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.

New Arrival

^$605^.00

In Stock

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Scubapro MK11 EVO First Stage Regulator

SKU: SCPMK11E

Scubapro MK11 EVO: Reliable first stage regulator.
Balanced diaphragm ensures consistent air delivery.
Chrome-plated brass build for lasting durability.
Two HP ports & four LP ports offer versatile setup.
Ideal scuba regulator for cold-water environments.
Compact, serviceable design ensures easy maintenance.

New Arrival

^$389^.00

In Stock

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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

^$299^.00

$424.95

Save: $125.95 (30%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Mares Prestige 15X and Prestige Octopus Package

SKU: MRSPKPRMFR: MRSPKPRGY

(10)

Mares regulator: reliable, downstream 2nd stage.
Balanced diaphragm 1st stage ensures consistent airflow.
Lightweight scuba regulator; travel-friendly design.
Nitrox compatible regulator, up to 40% oxygen.
Durable build: chromed brass, techno-polymer stages.
Easy maintenance regulator; extended product lifespan.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Save $171

^$449^.00

$619.90

Save: $170.90 (28%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Scubapro MK25 EVO/S620Ti Dive Regulator System

SKU: SCPM25ES620MFR: 12.620.000

(9)

Scubapro Regulator: Reliable, consistent airflow.
Dive Regulator: Titanium components enhance durability.
Cold-Water Regulator: Excellent freeze resistance.
Scubapro Dive Gear: Easy servicing, long-term use.
Balanced Regulator: Smooth, natural breathing effort.
Compact Regulator: Lightweight for travel, less bulk.

Free Gift

^$1185^.00

In Stock

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Sherwood Oasis Pro Regulator

SKU: SWDOPS

Sherwood Regulator: Reliable, consistent airflow.
Oasis Pro: Effortless breathing, adjustable settings.
Cold-Water Rated Regulator: Dive with confidence.
Durable Scuba Regulator: Built to last for years.
Compact Regulator Design: Travel-friendly profile.
Sealed 1st Stage: Prevents contamination damage.

Save $75

^$494^.95

$570.00

Save: $75.05 (13%)

In Stock

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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

Mares Rover 2S Regulator, Yoke

SKU: MRSR2S2IMFR: 416255INT

Mares regulator: reliable downstream demand valve.
Enjoy effortless breathing with this scuba regulator.
Durable scuba gear: built with marine-grade brass.
User-friendly regulator: simple to use and maintain.
Compact regulator: travel-friendly scuba equipment.
Cold-water ready: Mares regulator performs optimally.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$319^.95

$367.95

Save: $48.00 (13%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Aqualung Leg3nd MBS Regulator

SKU: UDRLM

(2)

Aqualung Leg3nd: Reliable scuba regulator system.
Balanced design ensures easy regulator breathing.
Adjustable 2nd stage for custom dive control.
Compact scuba regulator, ideal for travel dives.
Cold-water rated regulator for extreme conditions.
Dive confidently with a balanced regulator design.

Save $149

^$850^.00–^$999^.00

In Stock

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Apeks Ocea Stage 3 Regulator Set

SKU: APX4S3R

Apeks Ocea Regulator: Reliable air delivery system.
Adjustable breathing effort for optimal comfort.
Balanced regulator design ensures consistent performance.
Durable construction for long-lasting scuba gear use.
Compact size regulator, ideal for travel divers.
Easy maintenance regulator for hassle-free upkeep.

^$999^.00

In Stock

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Cressi Compact MC9 Regulator

SKU: CSBX9MFR: HX783051

(1)

Cressi Regulator: Balanced diaphragm 1st stage.
Compact regulator: Lightweight for travel divers.
Adjustable 2nd stage: Venturi dive/pre-dive switch.
Reliable scuba regulator: Downstream demand valve.
Cold-water regulator: Consistent performance assured.
Cressi MC9 regulator: 4 LP & 2 HP ports included.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Save $30

^$329^.95

$359.90

Save: $29.95 (8%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Sherwood Brut Pro Regulator

SKU: SWDBRPMFR: SRB9150

(12)

Sherwood regulator: reliable, durable scuba gear.
Balanced scuba regulator ensures effortless breathing.
Cold-water regulator: dive confidently in any temp.
Compact regulator design for streamlined diving.
Nitrox compatible regulator: up to 40% oxygen mix.
Durable regulator with marine-grade chrome-plated brass.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$364^.95

$420.00

Save: $55.05 (13%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Seac PX100 230 INT Regulator

SKU: SECP230IMFR: 0350095000004A

Seac INT Regulator: Reliable scuba gear, CE certified.
Dive confidently with this high-performance regulator.
Enjoy effortless breathing with Venturi Dive/Pre-Dive.
Cold water regulator: Excellent performance below 50°F.
Durable scuba regulator: Built to last, 1 HP & 4 LP ports.
Compact & lightweight Seac regulator for easy travel.

^$295^.00

Ships from Manufacturer

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Cressi XS Compact AC2 Regulator and Octopus

SKU: CSBACROKMFR: HY787051

Cressi regulator: reliable scuba gear, compact size.
AC2 regulator: enjoy easy breathing underwater dives.
Dive/Pre-Dive Venturi: adjustable 2nd stage control.
Durable regulator: polymer, rubber, silicone build.
Nitrox compatible regulator: safe, versatile use.
Cressi XS Compact Octopus: dependable backup air.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$399^.95

$419.90

Save: $19.95 (5%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Mares Dual ADJ 62X Regulator, Yoke

SKU: MRSDA62XIMFR: 416271INTBK

Mares regulator: reliable, balanced diaphragm 1st stage.
Adjustable 2nd stage: customize breathing effort easily.
Nitrox ready: up to 40% O2 compatibility for diving.
Compact scuba regulator: lightweight, travel-friendly design.
Durable build: marine brass, techno polymer stages.
Consistent performance: dependable downstream 2nd stage.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$495^.95

$579.95

Save: $84.00 (14%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Dive Rite O2 DECO Regulator

SKU: DIVRG5400MFR: RG5400

(1)

Dive Rite regulator: reliable, O2-ready design.
Balanced 2nd stage ensures effortless breathing.
Durable scuba regulator built for demanding dives.
Compact regulator: travel-friendly, lightweight gear.
Adjustable Dive Rite 2nd stage for optimal control.
Dive confidently with this high-performance regulator.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$299^.00

$328.95

Save: $29.95 (9%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Scubapro MK11/S270 DIN Regulator

SKU: SCPM11S270DMFR: 12.177.300

Scubapro Regulator: Reliable, balanced diaphragm 1st stage.
Dive/Pre-Dive switch ensures effortless regulator breathing.
Chrome-plated brass 1st stage for regulator durability.
Compact, lightweight 2nd stage scuba regulator design.
Scubapro regulator: Easy maintenance, long-lasting build.
Nitrox compatible regulator, up to 40% O2 for safe diving.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$605^.00

$634.95

Save: $29.95 (5%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

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.

Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Free Gift

^$600^.00

$629.95

Save: $29.95 (5%)

In Stock

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Includes Free

$29.95Value:

Scuba.com Round Regulator Bag

Aqualung Leg3nd Elite Regulator

SKU: UDRLE

Aqualung Leg3nd Elite: Superior, reliable regulator.
Balanced diaphragm 1st stage ensures consistent airflow.
Adjustable 2nd stage for effortless, easy breathing.
Compact scuba regulator; ideal for travel & diving.
Cold-water rated regulator for extreme conditions.
Nitrox compatible; use up to 40% O2 with this regulator.

Save $150

^$949^.00–^$1099^.00

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Atomic Aquatics ST1 Swivel Sealed Regulator

SKU: ATMST1SSMFR: 03-0060-6P

(6)

Atomic Aquatics Regulator: Superior breathing performance
Experience effortless breathing with the Atomic Aquatics ST1 regulator, designed for ultimate comfort
Stainless steel regulator ensures extreme durability
Sealed 1st stage for cold-water scuba diving
Adjustable 2nd stage enhances diving control
Compact scuba regulator with swivel design

^$1519^.95

In Stock

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