Low Volume First Stage Regulators

Cressi AC2/XS2 Regulator

57 reviews

SKU: CSBRXS2

~~$289.95~~ Save: $70 (24%)

^$219.95

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In Stock

DESCRIPTION

A dependable piston regulator with a marine-grade brass 1st stage and durable hi-tech polymer 2nd stage.

Pros

Lightweight and comfortable
Reliable and dependable
Affordable and good value for money
Easy and effortless breathing
Versatile and works in both cold and warm water

Mares Prestige 15X and Prestige Octopus Package

32 reviews

SKU: MRSPKPRGY

~~$619.90~~ Save: $170.90 (28%)

^$449

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In Stock

DESCRIPTION

A lightweight Mares regulator package with diaphragm first-stage, 4 LP ports, and 2 HP ports.

Oceanic Alpha 8 SP5 Piston Regulator, Black

13 reviews

SKU: OCNA8SP5BK

^$334.95

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In Stock

DESCRIPTION

A durable black piston regulator with easy breathing, Nitrox compatibility, and exceeding safety standards.

Zeagle F8 Yoke Regulator

12 reviews

SKU: ZGLF8

^$749.95

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In Stock

DESCRIPTION

A high-performance yoke regulator with a low-profile design, environmentally sealed first stage, and adjustable second stage.

Mares Abyss 22 Navy II Regulator

10 reviews

SKU: MRSAN22

^$869.95

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In Stock

DESCRIPTION

A high-performance scuba diving regulator with an environmentally sealed, balanced diaphragm design for extreme conditions.

Cressi AC2/XS2 Regulator & XS2 Octo Package

9 reviews

SKU: PCKXS2

~~$344.90~~ Save: $94.90 (28%)

^$250

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In Stock

DESCRIPTION

A lightweight, high-performance regulator and octopus package with a non-balanced flow-by piston design.

Highland by XS Scuba Compact DIN First Stage

9 reviews

SKU: XSSCDF

^$109.95

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In Stock

DESCRIPTION

A compact and low profile DIN first stage with fail-safe flow, made of marine grade brass.

Atomic Aquatics B2 Regulator Yoke

8 reviews

SKU: ATMB2S

^$969.95

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In Stock

DESCRIPTION

A lightweight, all-titanium regulator with adjustable 2nd stage and patented comfort swivel for easy breathing.

Atomic Aquatics B2 Sealed Regulator Yoke

7 reviews

SKU: ATMB2SS

^$1019.95

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In Stock

DESCRIPTION

A lightweight, ergonomic regulator with a titanium second stage and patented comfort swivel.

Cressi MC9-SC Compact Pro Yoke Regulator

7 reviews

SKU: CSBRCPS

^$499.95

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In Stock

DESCRIPTION

A lightweight, environmentally sealed regulator with enhanced performance and reduced effort for easy travel.

Dive Rite XT Regulator

6 reviews

SKU: DIVRG5300Y

~~$575~~ Save: $115 (20%)

^$460

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In Stock

DESCRIPTION

A patented, environmentally sealed regulator with optimal hose routing and Teflon-coated parts.

Atomic Aquatics M1 Regulator Yoke Sealed

6 reviews

SKU: ATMM1BK

^$1019.95

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In Stock

DESCRIPTION

A high-performance regulator designed for extreme diving situations, with nitrox-ready capabilities and freeze protection.

Dive Rite XT1/XT2 Advanced Open Water Regulator Package

5 reviews

SKU: DIVPK53Y

~~$975~~ Save: $195 (20%)

^$780

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In Stock

DESCRIPTION

A streamlined, environmentally sealed regulator with adjustable 2nd stage and cold-water ready components.

Atomic Aquatics M1 Regulator DIN Sealed

5 reviews

SKU: ATMM1BKD

^$1019.95

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In Stock

DESCRIPTION

A highly durable and corrosion-resistant Atomic M1 Regulator with DIN system, suitable for cold water and extreme diving.

Scubapro MK25 EVO/G260 Dive Regulator System

4 reviews

SKU: SCPM25EG26

^$1049

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In Stock

DESCRIPTION

A high-performance regulator set with adjustable 2nd stage, 5 LP ports, and enhanced freezing resistance.

Atomic Aquatics Z3 Regulator Yoke

4 reviews

SKU: ATMZ3RY

^$719.95

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In Stock

DESCRIPTION

A budget-friendly, high-performing regulator with self-lubricating seal, freeze protection, and swivel for easy underwater movement.

Zeagle Onyx II Yoke Regulator

4 reviews

SKU: ZGLO

^$549.95

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In Stock

DESCRIPTION

A lightweight and reliable regulator with adjustable inhalation resistance, suitable for nitrox up to 40%.

Scubapro MK25 EVO/A700 Carbon BT Yoke Dive Regulator System

3 reviews

SKU: SCPM25EA7CB

^$1799

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In Stock

DESCRIPTION

A durable and sleek black regulator with adjustable 2nd stage and enhanced cold-water diving capabilities.

Zeagle F8 DIN Regulator

3 reviews

SKU: ZGLF8D

^$749.95

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In Stock

DESCRIPTION

A balanced diaphragm design DIN regulator with adjustable 2nd stage and environmentally sealed DIN type.

Zeagle Envoy II Yoke Regulator

3 reviews

SKU: ZGLEN

^$449.95

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In Stock

DESCRIPTION

A lightweight and compact diaphragm regulator with an environmentally sealed first stage and nitrox compatibility.

Scubapro Mark 25 EVO Regulator, First Stage Only

2 reviews

SKU: SCPM25E

^$519

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In Stock

DESCRIPTION

A top-performing Scubapro first stage regulator with superb inhalation sensitivity and 5 LP ports.

Scubapro MK25T EVO/S620 X-Ti Yoke Dive Regulator System

2 reviews

SKU: SCPM25TES620

^$2499

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In Stock

DESCRIPTION

A durable and versatile titanium regulator set with instant airflow and improved performance for all dive conditions.

Cressi AC2 Compact Yoke Regulator

2 reviews

SKU: CSBAC

^$329.95

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In Stock

DESCRIPTION

A reliable and high-performing Cressi regulator with adjustable 2nd stage and comfortable silicone mouthpiece.

Scubapro MK25 EVO/S600 Regulator

2 reviews

SKU: SCPM25ES60

^$1099

+ wishlist

In Stock

DESCRIPTION

A high-performance Scubapro regulator with adjustable inhalation control and superior cold water performance.

Scubapro Mark 2 EVO Regulator DIN, First Stage Only

2 reviews

SKU: SCPM2ED

^$319

+ wishlist

In Stock

DESCRIPTION

A lightweight Scubapro Mark 2 EVO DIN regulator with increased airflow and easy maintenance.

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Low Volume First Stage Regulators

Low volume first stage regulators have become a popular choice among divers seeking a streamlined, travel-friendly setup without sacrificing performance or reliability. These compact and lightweight options are especially appealing for those who value efficient packing and reduced bulk, whether you’re jetting off for a tropical adventure or gearing up for a technical dive close to home. The smaller profile of low volume first stage regulators means less drag in the water and a more minimalist configuration, which is particularly beneficial for sidemount and backmount divers who need to keep gear out of the way and maintain a clean, efficient profile underwater. Many of these regulators feature balanced diaphragm designs, ensuring consistent airflow and easy breathing in a wide range of conditions, from warm, clear waters to colder, more challenging environments. For those planning dives in colder regions or where water contamination might be a concern, the environmental sealing found on many low volume first stage regulators provides added protection against freezing and debris, helping to ensure dependable performance dive after dive.

When considering a first stage regulator for scuba, it’s important to think about your own diving style and the accessories you plan to use. Low volume models often have a reduced number of ports—sometimes just three low pressure and one high pressure—which is ideal for a minimalist setup but may be limiting if you rely on multiple hoses for drysuits, transmitters, or other accessories. This makes them an excellent choice for experienced divers who have fine-tuned their gear to match specific needs, as well as for travelers who want to keep their luggage light and manageable. If you’re shopping for a gift, a low volume first stage regulator can be a thoughtful and practical present for an avid diver who values convenience and performance, or for someone advancing into technical diving and looking to upgrade their equipment. The late spring through summer season often brings increased opportunities for travel and exploration, and a lightweight, reliable first stage regulator can make all the difference when heading out for a weekend getaway or an extended dive trip. Whether you’re exploring vibrant coral reefs, navigating intricate wrecks, or simply enjoying the tranquility of open water, having the right regulator setup enhances both safety and enjoyment.

For those who demand even greater airflow for deep dives, high exertion, or specific technical applications, it may be worth exploring options that prioritize maximum gas delivery. For more information on these alternatives, take a look at our curated list of High Flow Regulators. Ultimately, choosing the right first stage regulator comes down to balancing your unique needs, diving environment, and future aspirations. With the right equipment, every dive becomes an opportunity to experience the underwater world with confidence and comfort, making each adventure as memorable as the last. As you plan your next season of diving, investing in a low volume first stage regulator can be a smart choice for those who value compactness, reliability, and versatility in their gear.