Sealed First Stages

Cressi XS2/AC2 Piston Regulator

57 reviews

SKU: CSBRXS2

^$219.95

+ wishlist

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

Aqualung Titan Regulator

26 reviews

SKU: UDRTRN

^$475

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In Stock

DESCRIPTION

A lightweight and durable Aqualung Titan Regulator with easy-to-breathe design, optimal hose routing, and adjustable features.

Pros

Affordable price
Comfortable mouthpiece
Good breathability
Low maintenance
Reliable performance

Scuba Regulator & Octo Grab Bag

15 reviews

SKU: SCBR1O

~~$514.90~~ Save: $134.95 (26%)

^$379.95

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In Stock

DESCRIPTION

A reliable and balanced scuba regulator and octo grab bag for underwater diving.

Sherwood Brut Pro Regulator

13 reviews

SKU: SWDBRP

^$374.95

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In Stock

DESCRIPTION

A reliable Sherwood Brut Pro regulator with optimal inhalation and exhalation, nitrox compatible up to 40%.

Hollis DC7 500SE Regulator with Maxflex Hose

10 reviews

SKU: HLSDC75Y

~~$749.95~~ Save: $400.00 (53%)

^$349.95

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In Stock

DESCRIPTION

A precision regulator set with environmentally sealed, durable materials and adaptable second stage positioning.

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.

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.

Scubapro MK25 EVO/S620Ti Dive Regulator System

9 reviews

SKU: SCPM25ES620

^$1185

+ wishlist

In Stock

DESCRIPTION

A high-performance regulator set with a balanced piston first stage and adjustable inhalation control.

3/8" Male to 7/16" Female Regulator Adapter (AA51)

9 reviews

SKU: AQUHAC

^$14.95

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In Stock

DESCRIPTION

A chrome brass adapter for vintage scuba regulators, allowing use of 7/16" hose in 3/8" port.

Scuba Regulator Grab Bag

8 reviews

SKU: SCBR1

~~$364~~ Save: $99.05 (27%)

^$264.95

+ wishlist

In Stock

DESCRIPTION

A piston first-stage regulator with a pneumatically balanced 2nd stage design and nitrox compatibility.

Mares LED Tank Module

8 reviews

SKU: MRSQT

~~$339.95~~ Save: $42.49 (12%)

^$297.46

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In Stock

DESCRIPTION

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

Atomic Aquatics B2 Sealed Regulator Yoke

7 reviews

SKU: ATMB2SS

^$1019.95

+ wishlist

In Stock

DESCRIPTION

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

Cressi XS Compact Pro MC9 SC Regulator

7 reviews

SKU: CSBRCPS

^$389.95

+ wishlist

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

+ wishlist

In Stock

DESCRIPTION

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

Atomic Aquatics M1 Regulator Yoke Sealed

6 reviews

SKU: ATMM1BK

^$1019.95

+ wishlist

In Stock

DESCRIPTION

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

Atomic Aquatics ST1 Swivel Sealed Regulator

6 reviews

SKU: ATMST1SS

^$1519.95

+ wishlist

In Stock

DESCRIPTION

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

Atomic Aquatics M1 Regulator DIN Sealed

5 reviews

SKU: ATMM1BKD

^$1019.95

+ wishlist

In Stock

DESCRIPTION

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

Atomic Aquatics Z3 Regulator Yoke

4 reviews

SKU: ATMZ3RY

^$719.95

+ wishlist

In Stock

DESCRIPTION

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

Scubapro MK25 EVO/G260 Regulator

4 reviews

SKU: SCPM25EG26

^$1063

+ wishlist

In Stock

DESCRIPTION

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

Sherwood Oasis Pro Regulator & Sherwood Octopus

3 reviews

SKU: SWDROOPK

~~$654.90~~ Save: $245.95 (38%)

^$408.95

+ wishlist

In Stock

DESCRIPTION

A reliable and environmentally sealed regulator set with balanced flow and high visibility soft purge cover.

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.

Sherwood SR2 Regulator & Octopus

3 reviews

SKU: SWDSR2RO

~~$1024.90~~ Save: $189.95 (19%)

^$834.95

+ wishlist

In Stock

DESCRIPTION

A high-performance regulator system with advanced technology, true balanced first stage design, and NITROX compatibility.

Atomic Aquatics T3 Titanium Swivel Sealed Regulator, DIN

3 reviews

SKU: ATMT3RD

^$2369.95

+ wishlist

In Stock

DESCRIPTION

A lightweight, durable titanium regulator with adjustable 2nd stage and environmentally sealed DIN fitting.

Sherwood Magnum Pro Regulator

3 reviews

SKU: SWDRMP

~~$424.95~~ Save: $185.95 (44%)

^$239

+ wishlist

In Stock

DESCRIPTION

A rugged and reliable regulator with a pneumatically balanced 2nd stage and environmentally sealed design.

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Sealed First Stages

When it comes to exploring the underwater world, the reliability of your gear is paramount—especially when venturing into colder waters or unpredictable environments. Sealed first stages are a cornerstone of dependable scuba equipment, designed to keep the internal mechanisms of your regulator protected from the elements. This means that whether you’re gliding over a sun-dappled reef in the tropics or braving the bracing chill of a quarry in late summer, you can count on your regulator to perform consistently. The sealed design prevents water, silt, and contaminants from entering the sensitive parts of your regulator, dramatically reducing the risk of free-flow and corrosion. For divers who find themselves drawn to the allure of cold water dives—where the thermocline drops and the world grows quiet—a sealed first stage is more than a luxury; it’s a necessity. Even in August, as lakes and coastal waters reach their warmest, those who explore deeper or in mountain regions know that temperatures can plummet quickly with depth, making environmental sealing an essential feature.

Choosing the right sealed first stage involves considering your diving habits, environments, and future ambitions. For newer divers, a sealed first stage offers peace of mind and simplicity, letting you focus on buoyancy and navigation rather than gear maintenance. Experienced divers appreciate the performance edge in challenging conditions, such as ice diving, silty environments, or saltwater wrecks where corrosion is a concern. These regulators are also a thoughtful gift for anyone who’s recently completed their certification, especially if they plan to dive in diverse locations or seasons. Parents often select sealed first stages for their children, knowing that an added layer of protection helps ensure safe, trouble-free dives. The technology is equally valued by instructors and dive professionals, who spend long hours in the water and need equipment that stands up to repeated use and variable conditions. Whether you’re gifting a diver embarking on a liveaboard adventure, or equipping yourself for a season of exploration, sealed first stages offer a blend of durability and low maintenance that’s hard to beat.

The versatility of sealed first stages also extends to travel and compact setups. Many divers appreciate having a reliable, environmentally sealed regulator that fits neatly into their luggage for spontaneous trips or remote destinations. If you’re interested in streamlining your kit even further, you may want to explore Compact First Stages, which combine the benefits of environmental sealing with a lightweight, travel-friendly design. No matter where your next dive takes you—whether it’s a kelp forest shimmering in the late summer sun or a freshwater spring hidden deep in the woods—having a sealed first stage means you’re ready to meet the challenge head-on. The right equipment doesn’t just enhance your safety; it deepens your connection to the underwater world, letting you focus on the thrill of discovery with every breath.