Compact First Stages

Cressi XS2/AC2 Piston Regulator

57 reviews

SKU: CSBRXS2

^$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

Scubapro "300 bar" (4350 psi) DIN Conversion Kit

36 reviews

SKU: SCPDC3

~~$69.95~~ Save: $20 (29%)

^$49.95

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In Stock

DESCRIPTION

A Durable and easy-to-install DIN conversion kit for Scubapro regulators, perfect for traveling divers.

Pros

Fast and easy conversion
Excellent quality
Easy installation
Reliable
Works as advertised

Mares Prestige 15X and Prestige Octopus Package

10 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.

Cressi XS2/AC2 Regulator and XS Octopus Package

9 reviews

SKU: PCKXS2

~~$344.90~~ Save: $45.90 (13%)

^$299

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In Stock

DESCRIPTION

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

Mares LED Tank Module

8 reviews

SKU: MRSQT

^$339.95

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In Stock

DESCRIPTION

A Mares LED Tank Module with RF transmission, LED indicator for tank pressure, and streamlined dive profile.

Cressi XS Compact Pro MC9 SC Regulator

7 reviews

SKU: CSBRCPS

^$389.95

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In Stock

DESCRIPTION

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

Scubapro MK25 EVO/A700 Dive Regulator System

6 reviews

SKU: SCPM25EA70

^$1254

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In Stock

DESCRIPTION

A high-performance regulator set with customizable breathing options and enhanced cold-water diving capabilities.

Atomic Aquatics ST1 Swivel Sealed Regulator

6 reviews

SKU: ATMST1SS

^$1519.95

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In Stock

DESCRIPTION

A corrosion-resistant stainless steel regulator with smooth breathing and tangle-free movement.

Dive Rite XT Regulator

6 reviews

SKU: DIVRG5300Y

^$475

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In Stock

DESCRIPTION

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

Dive Rite XT Advanced Open Water Regulator

5 reviews

SKU: DIVPK53D

^$759

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In Stock

DESCRIPTION

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

Scubapro MK25 EVO/G260 Regulator

4 reviews

SKU: SCPM25EG26

^$1063

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In Stock

DESCRIPTION

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

Scubapro MK25 EVO/A700 Carbon BT Yoke Dive Regulator System

3 reviews

SKU: SCPM25EA7CB

^$1749

+ wishlist

In Stock

DESCRIPTION

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

Cressi XS2/AC2 Regulator, XS Octopus and Mini 2 Gauge

3 reviews

SKU: PCKXS22G

~~$544.85~~ Save: $99.90 (18%)

^$444.95

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In Stock

DESCRIPTION

A reliable and comfortable regulator system with primary, octopus, and analog pressure/depth gauge console.

Mares Pure SLS BCD, Mares Prestige 15X Regulator, Mares Prestige Octopus & Mares Mission 3 Gauge Console Bundle

2 reviews

SKU: PKGPROGR

~~$1287.99~~ Save: $488.99 (38%)

^$799

+ wishlist

In Stock

DESCRIPTION

A complete life support bundle featuring the Mares Pure SLS BCD, Prestige 15X Regulator, Prestige Octopus, and Mission 3 Gauge Console.

Scubapro Mark 25 EVO Regulator, First Stage Only

2 reviews

SKU: SCPM25E

^$506

+ wishlist

In Stock

DESCRIPTION

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

Mares Dual 15X Regulator

2 reviews

SKU: MRSD15X

~~$399.95~~ Save: $125 (31%)

^$274.95

+ wishlist

In Stock

DESCRIPTION

A lightweight and environmentally sealed regulator with stable air flow and effortless breathing.

Cressi XS Compact AC2 Regulator

2 reviews

SKU: CSBAC

^$264.95

+ wishlist

In Stock

DESCRIPTION

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

Mares Prestige 15X Regulator

2 reviews

SKU: MRSPR15XGR

~~$449.95~~ Save: $105 (23%)

^$344.95

+ wishlist

In Stock

DESCRIPTION

A compact and reliable regulator with advanced coating technology for durability and easy breathing.

Pros

Good basic reg
Dependability
Clear view
Breathability
Price

Scubapro Mark 2 EVO DIN Regulator, First Stage Only

2 reviews

SKU: SCPM2ED

^$304

+ wishlist

In Stock

DESCRIPTION

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

Zeagle Envoy II DIN Regulator

2 reviews

SKU: ZGLEDN

^$449.95

+ wishlist

In Stock

DESCRIPTION

A balanced diaphragm DIN regulator with freezing resistance and 5 LP ports.

Scubapro Mark 25 EVO Regulator DIN, First Stage Only

2 reviews

SKU: SCPM25ED

^$506

+ wishlist

In Stock

DESCRIPTION

A high-performing Scubapro first stage regulator with DIN fitting and 5 LP ports.

Atomic Aquatics Z3 Sealed Regulator, DIN

2 reviews

SKU: ATMZ3SD

^$769.95

+ wishlist

In Stock

DESCRIPTION

A compact and economical DIN sealed regulator with adjustable 2nd stage and optimum breathing resistance.

Scubapro MK19 EVO/A700 Dive Regulator System

1 reviews

SKU: SCPM19EA700

^$1254

+ wishlist

In Stock

DESCRIPTION

A reliable regulator for cold and contaminated water diving with adjustable settings for comfort.

Scubapro MK25 EVO/A700 Carbon BT DIN Dive Regulator System

1 reviews

SKU: SCPM25EA7CBD

^$1749

+ wishlist

In Stock

DESCRIPTION

A lightweight and durable Scubapro regulator with a carbon fiber 2nd stage front cover and black tech coating.

Cressi Bundle Aquapro+ BCD with Compact MC9 Regulator, XS Compact Octopus and Digi 2 Digital Console

1 reviews

SKU: PCKCRSAROB

~~$1134.80~~ Save: $149.85 (13%)

^$984.95

+ wishlist

In Stock

DESCRIPTION

A complete life support bundle with a balanced diaphragm regulator, digital console, and jacket-style BCD.

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Compact First Stages

Compact first stages have become a mainstay for divers who value portability, streamlined gear, and versatility in their underwater adventures. As the autumn diving season arrives, bringing with it cooler waters and the allure of distant, tropical destinations, the appeal of compact first stages is especially strong for those planning to travel light or maximize limited luggage space. These first stages are engineered to be significantly smaller and lighter than their standard counterparts, making them a favorite among jet-setting divers, technical explorers, and anyone who prefers a minimalist approach to their kit. Their low-profile design not only reduces bulk and drag in the water—making every kick feel more efficient—but also simplifies packing, whether you’re headed for a warm Caribbean reef or a brisk Pacific kelp forest. For divers who routinely travel by air, every ounce and inch saved can make a difference, turning a potentially cumbersome gear bag into a manageable carry-on. The compact form factor is also ideal for those who want to keep their setup tidy and unobtrusive, whether diving from a crowded boat deck or gearing up on a remote beach.

Beyond the obvious travel advantages, compact first stages are highly valued by technical divers and instructors for their adaptability in various configurations. Their streamlined size makes them a natural choice for use as backup regulators, octopus setups, or as dedicated first stages for stage and decompression bottles. In these roles, the reduced weight and bulk help keep the entire rig balanced and easy to manage, especially during complex dives where mobility and equipment management are critical. Many compact first stages utilize robust piston or diaphragm mechanisms, offering a dependable balance between performance and reliability. While their flow rates may be lower than those of high-performance, full-sized first stages, they are more than sufficient for shallow dives, training sessions, or as a backup air source. This makes them a thoughtful gift for new divers building their first kit, seasoned travelers who appreciate practical gear, or technical divers looking to optimize their setups for specific tasks. Picture a diver exploring a vibrant reef on a crisp October morning, their gear unobtrusive and perfectly configured, allowing them to glide effortlessly alongside schools of fish or through the shadows of a shipwreck—this is the kind of experience compact first stages are designed to enhance.

When considering a compact first stage, it’s important to match your choice to your diving style and needs. Think about the environments you frequent, the type of dives you enjoy, and how your gear will be used throughout the season. For those who dive primarily in warm, shallow waters or travel often, the lightweight and packable nature of these first stages can transform the logistics of a trip. Technical divers and instructors may appreciate the ability to configure multiple compact first stages on stage bottles, streamlining complex setups without sacrificing reliability. As with any piece of dive equipment, maintenance and compatibility with your existing setup are key—ensure the first stage you choose integrates smoothly with your second stages, hoses, and other accessories. For those interested in exploring the differences between compact and other types of first stages, such as those offering enhanced breathing performance or environmental sealing, you can learn more by visiting our page on Balanced First Stages. Whether you’re preparing for a spontaneous weekend getaway, outfitting a backup system, or simply seeking to refine your gear for the new season, compact first stages offer a blend of convenience, reliability, and performance that makes them a smart addition to any diver’s equipment list.