Skip to content
  • 🔥 Biggest discounts and free shipping for a shopping spree! 🔥
  • 🔥 Biggest discounts and free shipping for a shopping spree! 🔥
Divemechanic ShopDivemechanic Shop
  • Menu
  • Technical Diving
    • Technical Diving Classes
    • Regulators – Tech
    • Tanks & Accys.
    • Accessories
    • Reels & Spools
    • Gauges
    • Primary Lights
    • Sidemount
    • Hoses
    • Harnesses
    • Cutting Device
    • Analyzers
    • Backplates and Pads
    • Packages
    • Service
  • EXPOSURE GEAR
    • Undergarments
    • Drysuits
    • Accessories
    • Rash Guards/Skins
    • 3mm & 5mm
    • Wetsuits
    • Wetsuit Hoods
    • Wetsuit Boots
    • Drysuit Repair Parts
    • Wetsuit Gloves
    • Dry Suit Hoods
    • Triathlon
    • Dry Suit Boots
    • Semi-Dry
    • Shorty
  • Packages
    • BCD Packages
    • Regulator Packages
    • Drysuit Packages
    • Accessory Packages
    • Camera Packages
    • Computer Packages
  • Photography
    • Underwater Lighting
    • Camera Accessories
    • GoPro Accessories
    • Cameras
    • Camera cases
  • PSD & Military
    • Dive Rescue Gear
    • PSD Classes
    • ERDi Diver Level
    • ERDi Professional
  • Snorkeling
    • Masks
    • Fins
    • Snorkels
    • Snorkeling Vests
  • New Release
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

 

ST1 Regulator

Home / Technical Diving / Regulators - Tech
New
ST1 Regulator
ST1 Regulator - Image 2
ST1 Regulator - Image 3
ST1 Regulator - Image 4
ST1 Regulator - Image 5

$389.00 Original price was: $389.00.$99.99Current price is: $99.99.

Clear
SKU: -6904172896799830810 Categories: Regulators - Tech, Technical Diving
  • Secure Shopping Starts with Safe Payments
  • Experience the difference quality makes.
  • SSL encryption, absolutely safe shopping
  • Uncompromising quality, every time.
Browse
  • EXPOSURE GEAR
    • 3mm & 5mm
    • Accessories
    • Dry Suit Boots
    • Dry Suit Hoods
    • Drysuit Repair Parts
    • Drysuits
    • Rash Guards/Skins
    • Semi-Dry
    • Shorty
    • Triathlon
    • Undergarments
    • Wetsuit Boots
    • Wetsuit Gloves
    • Wetsuit Hoods
    • Wetsuits
  • Packages
    • Accessory Packages
    • BCD Packages
    • Camera Packages
    • Computer Packages
    • Drysuit Packages
    • Regulator Packages
  • Photography
    • Camera Accessories
    • Camera cases
    • Cameras
    • GoPro Accessories
    • Underwater Lighting
  • PSD & Military
    • Dive Rescue Gear
    • ERDi Diver Level
    • ERDi Professional
    • PSD Classes
  • Snorkeling
    • Fins
    • Masks
    • Snorkeling Vests
    • Snorkels
  • Technical Diving
    • Accessories
    • Analyzers
    • Backplates and Pads
    • Cutting Device
    • Gauges
    • Harnesses
    • Hoses
    • Overhead
    • Packages
    • Primary Lights
    • Reels & Spools
    • Regulators - Tech
    • Service
    • Sidemount
    • Tanks
    • Tanks & Accys.
    • Technical Diving Classes
  • Uncategorized
Recently Viewed
  • The Scout Diving System The Scout Diving System $310.00 Original price was: $310.00.$99.99Current price is: $99.99.
  • Description
  • Additional information
  • Reviews (0)

The Atomic Aquatics ST1 is the world’s only Stainless Steel regulator and the right choice for the environment. The first stage is beautifully machined from a special grade type 316 stainless steel that is twice the strength of brass with corrosion resistance approaching titanium. Many environmental experts around the world have classified Stainless Steel as the “Green” metal of the future. It does not require any additional protective chrome or nickel plating processes that can be harmful to the environment and is 100% recyclable. The second stage features all titanium second stage components as found in the T2 and B2 regulator models.

First stage of type 316 stainless steel that is twice the strength of brass with durability and corrosion resistance nearing that of titanium.
Compact first stage features 5-port low-pressure swivel and exclusive “Jet Seat” piston design.
Exclusive, patented Atomic Aquatics “Comfort Swivel” second stage hose. The only second stage swivel of its type that allows unidirectional movement without any loss of performance. This swivel articulates at the slightest movement to eliminate any binding or pulling of the second stage hose in the mouth. Constructed of polished 316 stainless steel.
Seat Saving Orifice: Exclusive, patented Atomic Aquatics feature prolongs the second stage seat life indefinitely, eliminating aggravating leaks and degradations in performance.
AFC: (Automatic Flow Control) Exclusive, patented Atomic Aquatics feature automatically adjusts airflow at depth to maintain stable, comfortable breathing..
Nitrox ready up to 40% .
2 year/300 Dive service interval: Corrosion resistant materials and maintenance saving designs extend the customary annual service period to 2 years.
Limited lifetime warranty not contingent upon annual servicing.

Stage Style

Yoke, DIN

Reviews

There are no reviews yet.

Be the first to review “ST1 Regulator” Cancel reply

Related products

New
Sidemount Tail Pocket
Quick View

Technical Diving

Sidemount Tail Pocket

$105.00 Original price was: $105.00.$73.50Current price is: $73.50.
New
Slide Lock 2 - 200' REEL
Quick View

Reels & Spools

Slide Lock 2 – 200′ REEL

$219.00 Original price was: $219.00.$97.99Current price is: $97.99.
New
Tec 45
Quick View

Technical Diving

Tec 45

$313.00 Original price was: $313.00.$97.99Current price is: $97.99.
New
Blue Dagger BCD Knife
Quick View

Cutting Device

Blue Dagger BCD Knife

$22.99 Original price was: $22.99.$16.09Current price is: $16.09.
New
Trim Weight Pockets (each)
Quick View

Technical Diving

Trim Weight Pockets (each)

$12.29 Original price was: $12.29.$8.60Current price is: $8.60.
New
Faber LP95 Steel Tank - Silver
Quick View

Tanks & Accys.

Faber LP95 Steel Tank – Silver

$384.38 Original price was: $384.38.$95.99Current price is: $95.99.
New
Faber HP Steel Tank Doubles Package - Hot Dip Galvanized
Quick View

Tanks & Accys.

Faber HP Steel Tank Doubles Package – Hot Dip Galvanized

$390.00 Original price was: $390.00.$98.99Current price is: $98.99.
New
Highland Stage Bottle Strap Kits
Quick View

Accessories

Highland Stage Bottle Strap Kits

$64.95 Original price was: $64.95.$45.47Current price is: $45.47.
OUR SHOP
  • My account
  • Checkout
  • Cart
  • Payment Method
CONTACT
  • About Us
  • Contact Us
  • FAQ
  • Returns & Exchanges
CUSTOMER SERVICES
  • Privacy Policy
  • Shipping Policy
  • Delivery
  • Term and Conditions
STAY IN TOUCH

Sign up for exclusive offers, original stories, events and more.

    Copyright 2026 © www.divemechanicshop.com
    • Technical Diving
      • Technical Diving Classes
      • Regulators – Tech
      • Tanks & Accys.
      • Accessories
      • Reels & Spools
      • Gauges
      • Primary Lights
      • Sidemount
      • Hoses
      • Harnesses
      • Cutting Device
      • Analyzers
      • Backplates and Pads
      • Packages
      • Service
    • EXPOSURE GEAR
      • Undergarments
      • Drysuits
      • Accessories
      • Rash Guards/Skins
      • 3mm & 5mm
      • Wetsuits
      • Wetsuit Hoods
      • Wetsuit Boots
      • Drysuit Repair Parts
      • Wetsuit Gloves
      • Dry Suit Hoods
      • Triathlon
      • Dry Suit Boots
      • Semi-Dry
      • Shorty
    • Packages
      • BCD Packages
      • Regulator Packages
      • Drysuit Packages
      • Accessory Packages
      • Camera Packages
      • Computer Packages
    • Photography
      • Underwater Lighting
      • Camera Accessories
      • GoPro Accessories
      • Cameras
      • Camera cases
    • PSD & Military
      • Dive Rescue Gear
      • PSD Classes
      • ERDi Diver Level
      • ERDi Professional
    • Snorkeling
      • Masks
      • Fins
      • Snorkels
      • Snorkeling Vests
    • New Release
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.