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Regardless of which type of alternate air source you select, remember that its performance will depend on the ability of the regulator first stage to deliver air, particularly when it is supplying two second stages and a power inflator. The bottom lines: Given the type of diving you plan to do, how will it work for you in a worst-case scenario? How much risk are you willing to accept? If you dive solo, under demanding conditions or in overhead environments, the greater your need for a completely independent air source and a high-performance regulator as your alternate air source.
(Excerpt used from New Diver Magazine)
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Mfg Part Number :
974

Submersible Systems Neoprene Vest with Mouthpiece Cover

 



  • Free Lanyard included
  • Great for kayakers, surfers and extreme sport enthusiasts - Not for Scuba Diving or Snorkeling
  • Simply put the Spare Air in your mouth and breathe
  • Holds 1.0 and 1.7 cubic foot Spare Air units (not included)
  • Adjustable velcro panels
  • One Size Fits All
  • FULL MANUFACTURER'S WARRANTY
UPGRADES:
Submersible Systems Spare Air Pack 1.7 CF Add $249.95
Options: 



Spare Air Safety Leash $11.95

Spare Air Travel Pack $17.95

Polar Fleece Beanie $12.95

  $79.95

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Mfg Part Number :
RAS2S

H2O RAS2 Redundant Pony Bottle System

H2O RAS2 Redundant Pony Bottle SystemCustomer reviews

 



  • Station Filler included
  • Works with any cylinder that accepts a standard 3/4 inch o-ring valve
  • Nitrox Compatible to 40% (The Recreational Limits of Nitrox)
  • Bright "Hi-Viz" neon yellow cover
  • Low pressure quick disconnect allows easy detachment of 2nd stage and hose from 1st stage
  • FULL MANUFACTURER'S WARRANTY

     

    *Shipping Surcharge (In ADDITION to your normal shipping charges)
      13 Cubic Foot tank Only
    • Ground Shipping Surcharge: $4.95
    • ThreeDay Shipping Surcharge $11.95
    • NextDay Shipping Surcharge $24.95
UPGRADES:
Sherwood 6 Cubic Foot Aluminum Tank Add $85.00
Sherwood 13 Cubic Foot Aluminum Tank Add $95.00
Options: 



H2O RAS 13 Cubic Foot Pony BottleTank Bag $10.95

Deluxe Regulator Dive Bag $71.50

Polar Fleece Beanie $12.95

  $356.95

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Mfg Part Number :
RAS1

H2O RAS 1 Redundant Air System

 



  • Station Filler included
  • This system uses the reliable RG2V 1st stage &RXS style 2nd stage
  • Durable high performance regulator
  • Exhaust bubbles are vented to the side, not in the divers face
  • Low pressure quick disconnect allows easy detachment of 2nd stage and hose from 1st stage
  • Balanced 1st stage with built-in swivel to reduces jaw fatigue
  • Features: 2 high pressure and 4 low pressure ports
  • Tank not included- (See below to order)
  • FULL MANUFACTURER'S WARRANTY

*Shipping Surcharge (In ADDITION to your normal shipping charges)When Upgrading to 13, 19 and 30Cf Tanks

  • Ground Shipping Surcharge: $20.95
  • ThreeDay Shipping Surcharge $36.95
  • NextDay Shipping Surcharge $60.95
  • Next Day AM or Next Saturday AM Shipping Surcharge: $68.95
UPGRADES:
Sherwood 6 Cubic Foot Aluminum Tank Add $85.00
Sherwood 13 Cubic Foot Aluminum Tank Add $95.00
Sherwood 19 Cubic Foot Aluminum Tank Add $105.00
Sherwood 30 Cubic Foot Aluminum Tank Add $115.00
Options: 



Deluxe Regulator Dive Bag $71.50

19 Cubic Foot RAS Pony BottleTank Bag $12.95

Pony Bottle Pressure Gauge $59.95

  $275.95

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Mfg Part Number :
O20

IST Octo

 



UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Divers Tool Master $19.95

Deluxe Regulator Dive Bag $71.50

Polar Fleece Beanie $12.95

  $110.95

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Mfg Part Number :
AA0025

Apeks AT20 Octo

Free Standard Shipping

 



UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Deluxe Round Protective Scuba Regulator Bag $29.95

Scuba Equipment Care & Maintenance Book $19.95

Scuba Tool Master $19.95

  $180.00

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Mfg Part Number :
AA0425

Apeks ATX40 Octo

Free Standard Shipping

 



"Scuba Lab Testers Choice!"
UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Deluxe Round Protective Scuba Regulator Bag $29.95

Scuba Equipment Care & Maintenance Book $19.95

Scuba Tool Master $19.95

  $215.00

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Mfg Part Number :
AA0341F

Apeks XTX40 Octo

Free Standard Shipping

 



  • Brand new & completely redesigned for 2013
    Not like most other sites that sell the old discontinued model
  • Nitrox Compatible to 40% (The Recreational Limits of Nitrox)
  • Standard with small exhaust tee
  • Suitable for cold water use
  • "Diver Adjustable" venturi to prevent unwanted free-flow
  • 36" Hi-Viz neon yellow hose
  •  LIFETIME MANUFACTURER'S PARTS WARRANTY
    NEVER PAY FOR PARTS
UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Deluxe Round Protective Scuba Regulator Bag $29.95

Comfo-bite Silicone Scuba Regulator Mouthpiece $9.95

Scuba Tool Master $19.95

  $235.00

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Mfg Part Number :
AP0385M

Apeks Flight Octo

Free Standard Shipping

 



  • Compact and lightweight 2nd stage
  • Nitrox Compatible to 40% (The Recreational Limits of Nitrox)
  • "Diver Adjustable" venturi to prevent unwanted free-flow
  • Lightweight 2nd stage to prevent jaw fatigue and add to overall comfort
  • Bright "Hi-Viz" yellow hose and 2nd stage cover for easy identification
  • Large Purge button
  •  LIFETIME MANUFACTURER'S PARTS WARRANTY
    NEVER PAY FOR PARTS
UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Scuba Equipment Care & Maintenance Book $19.95

Deluxe Round Protective Scuba Regulator Bag $29.95

Divers Tool Master $19.95

  $265.00

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Mfg Part Number :
AP0756

Apeks Egress Octo

Free Standard Shipping

 



  • Nitrox Compatible to 40% (The Recreational Limits of Nitrox)
  • Rugged, reliable and affordable
  • Exceptional breathing performance
  • Streamline flat design
  • Bright "Hi-Viz" yellow hose and 2nd stage cover for easy identification
  • 36" Hi-Viz neon yellow hose
  •  LIFETIME MANUFACTURER'S PARTS WARRANTY
    NEVER PAY FOR PARTS
UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Deluxe Round Protective Scuba Regulator Bag $29.95

Scuba Equipment Care & Maintenance Book $19.95

Scuba Tool Master $19.95

  $185.00

ask an expert



Mfg Part Number :
750-6220

Zeagle 20 cubic foot Redundant Air System

 



  • The answer for out-of-air emergencies
  • Great for deeper dives, or dives in an extended overhead environment
  • Redundant air system includes
    • 20 Cubic foot Tank
    • Razor Reg/Valve and Envoy 2nd stage with a 36" hose
    • Fill adapter
    • Quick release octo holder
  • TANK COLORS:Black or Silver
  • FULL MANUFACTURER'S WARRANTY
UPGRADES:
Scuba Tank Carrier Add $12.95
Options: 



Stainless Steel Underwater Safety Shears $9.95

Scuba Tool Master $19.95

Save A Dive Kit $19.95

  $542.00

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Mfg Part Number :
AA0340F

Apeks XTX20 Octo

Free Standard Shipping

 



"Scuba Lab Testers Choice!"
  • Brand new & completely redesigned for 2013 
    Not like most other sites that sell the old discontinued model
  • Nitrox Compatible to 40% (The Recreational Limits of Nitrox)
  • Standard with a small exhaust tee
  • "Diver Adjustable" venturi to prevent unwanted free-flow
  • Bright "Hi-Viz" yellow hose and 2nd stage cover for easy identification
  • 36" Hi-Viz neon yellow hose
  •  LIFETIME MANUFACTURER'S PARTS WARRANTY
    NEVER PAY FOR PARTS
UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Deluxe Round Protective Scuba Regulator Bag $29.95

Scuba Equipment Care & Maintenance Book $19.95

Scuba Tool Master $19.95

  $195.00

ask an expert



Mfg Part Number :
129353

Aqua Lung Legend Glacia Octo

Free Standard Shipping

 



  • Lightweight flexible double braided Aqua Flex hose to help reduce pulling on mouthpiece
  • Nitrox compatible to 40% (The recreational limits of Nitrox)
  • Equipped with a lip shield on the second stage to keep lips warm
  • "Diver Adjustable" venturi to prevent unwanted free-flow
  • Lightweight 2nd stage to prevent jaw fatigue and add to overall comfort
  • Bright "Hi-Viz" yellow hose and 2nd stage cover for easy identification
  • 39" Hi-Viz neon yellow hose
  • LIFETIME MANUFACTURER'S PARTS WARRANTY
    NEVER PAY FOR PARTS
UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Scuba Equipment Care & Maintenance Book $19.95

Deluxe Round Protective Scuba Regulator Bag $29.95

Divers Tool Master $19.95

  $265.00

ask an expert



Mfg Part Number :
02-0105-3P

Atomic M1 Monel Octo

Free Standard Shipping

 



"Scuba Lab Testers Choice!"

And the reviews are in:
"…this reg turned in Excellent performance on the breathing simulator, earning perfect work of breathing scores when subjected to our standard reg tests." - Scuba Lab

UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Scuba Tool Master $19.95

Atomic Deluxe Regulator Bag $71.50

Deluxe Diver Tool And Repair Kit $34.95

  $350.00

ask an expert



Mfg Part Number :
02-0115-3P

Atomic B2 Octo

Free Standard Shipping

 



UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Scuba Tool Master $19.95

Atomic Deluxe Regulator Bag $71.50

Deluxe Diver Tool And Repair Kit $34.95

  $430.00

ask an expert



Mfg Part Number :
02-0215-3P

Atomic ST1 Octo

Free Standard Shipping

Atomic ST1 OctoCustomer reviews

 



UPGRADES:
Atomic Deluxe Regulator Bag Add $71.50
Options: 



Scuba Tool Master $19.95

Breakaway Octo Holder $7.95

Deluxe Diver Tool And Repair Kit $34.95

  $430.00

ask an expert



Mfg Part Number :
7001/O

Seac X-5 Pro Octo

 



  • Brand new for 2013
  • Hi-Viz yellow face cover
  • Simple to maintain
  • Large Purge button
  • "Diver Adjustable" venturi to prevent unwanted free-flow
  • Nitrox compatible to 40% (the recreational limits of nitrox)
  • FULL MANUFACTURER’S WARRANTY
UPGRADES:
Scuba Deluxe Round Protective Regulator Bag Add $29.95
Options: 



Scuba Tool Master $19.95

Scuba Breakaway Octo Holder $7.95

Scuba Equipment Care & Maintenance Book $19.95

  $140.00

ask an expert



Mfg Part Number :
320-8110

Zeagle Z Octo

Free Standard Shipping

 



UPGRADES:
Scuba Breakaway Octo Holder Add $7.95
Options: 



Scuba Deluxe Round Regulator Bag $29.95

Scuba Console Protection Sleeve $9.95

Divers Tool Master $19.95

  Retail:
$256.00

You Pay:
$239.95

You Save:
$16.05

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Mfg Part Number :
350-6240

Zeagle Razor Regulator

Free Standard Shipping

Zeagle Razor RegulatorCustomer reviews

 



  • Tank Fill Adapter included
  • Nitrox compatible to 40% (The recreational limits of Nitrox)
  • Balanced 2nd stage is light and compact
  • Lightweight 2nd stage to prevent jaw fatigue and add to overall comfort
  • "Diver Adjustable" venturi to prevent unwanted free-flow
  • 48 inch hose
  • Exceptional Dependability
  • LIFETIME MANUFACTURER'S PARTS WARRANTY
    NEVER PAY FOR PARTS

*Shipping Surcharge for 6 or 13 cubic foot tanks (In ADDITION to your normal shipping charges)

    • Ground Shipping Surcharge: $6.95
    • Three Day Shipping Surcharge: $10.95
    • Two Day Shipping Surcharge: $17.95
    • Next Day Shipping Surcharge: $23.95
    • Next Day AM or Next Saturday AM Shipping Surcharge: $35.95
UPGRADES:
Sherwood 6 Cubic Foot Aluminum Tank Add $85.00
Sherwood 13 Cubic Foot Aluminum Tank Add $95.00
Options: 



Divers Tool Master $19.95

Deluxe Round Protective Scuba Regulator Bag $29.95

Deluxe Heavy-Duty Mesh Backpack Dive Bag $39.95

  Retail:
$378.00

You Pay:
$374.95

You Save:
$3.05

ask an expert



Mfg Part Number :
127849

Aqua Lung Mikron Octo

Free Standard Shipping

 



  • Orthodontic mouthpiece to alleviate jaw fatigue by easing bite needed to hold regulator
  • Exhaust tee designed to keep bubbles out of your vision and reduce effort to exhale
  • Nitrox Compatible to 40% (The Recreational Limits of Nitrox)
  • "Diver Adjustable" venturi to prevent unwanted free-flow
  • Bright "Hi-Viz" yellow hose and 2nd stage cover for easy identification
  • LIFETIME MANUFACTURER'S PARTS WARRANTY
    NEVER PAY FOR PARTS
UPGRADES:
Scuba Deluxe Round Protective Regulator Bag Add $29.95
Options: 



Scuba Tool Master $19.95

Breakaway Octo Holder $7.95

Deluxe Diver Tool And Repair Kit $34.95

  $210.00

ask an expert



Mfg Part Number :
170PKX

Submersible Systems 1.7 Cubic Foot Air Xtreme

 






Spare Air Safety Leash $11.95

Spare Air Travel Pack $17.95

Scuba.com Deluxe XLarge Towel $24.95

  $274.95

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Mfg Part Number :
IR-3

TUSA Duo-Air

Free Standard Shipping

TUSA Duo-AirCustomer reviews

 



  • Nitrox compatible to 40% (The recreational limits of Nitrox)
  • Inflator integrated secondary air source
  • The Duo Air is positioned at the end of the Buoyancy Compensator hose
  • Eliminating hose clutter, because you use the same hose to supply both the power inflator and your alternate air source, also known as safe-2nd or Octo
  • Compatible with all BC's - will NOT fit BC's made by Aeris, Aqua-Lung, Cressi, Dacor, Oceanic, SeaQuest, TUSA models with the A.P.A. Active Purge Assist inflator system, US Divers and XS Scuba
  •  MANUFACTURER'S WARRANTY

And the reviews are in:
"Excellent" - Scuba Lab

UPGRADES:
Ideations Surface & Underwater Air Horn Dive Alert Plus V.2 Type III Add $76.50
Options: 



Scuba Tool Master $19.95

Deluxe Regulator Dive Bag $71.50

Deluxe Heavy-Duty Mesh Backpack Dive Bag $39.95

  Retail:
$220.00

You Pay:
$199.95

You Save:
$20.05

ask an expert



Mfg Part Number :
8450

Seac Synchro Octo

Free Standard Shipping

 



  • Brand new for 2013
  • Hi-Viz yellow face cover
  • Simple to maintain
  • Large Purge button
  • "Diver Adjustable" venturi to prevent unwanted free-flow
  • Nitrox compatible to 40% (the recreational limits of nitrox)
  • FULL MANUFACTURER’S WARRANTY
UPGRADES:
Scuba Deluxe Round Protective Regulator Bag Add $29.95
Options: 



Scuba Tool Master $19.95

Breakaway Scuba Octo Holder $7.95

Scuba Equipment Care & Maintenance Book $19.95

  Retail:
$135.00

You Pay:
$119.95

You Save:
$15.05

ask an expert



Mfg Part Number :
HEED-3

Submersible Systems Heed 3 - Military Emergency Egress Device

Submersible Systems Heed 3 - Military Emergency Egress DeviceCustomer reviews

 



  • Deluxe dial gauge pressure indicator included
  • More than 1lb lighter than competing models
  • Under 9" tall, the HEED 3 is the smallest emergency breathing device on the market
  • Compactdesign is easy to use
  • Simple design is easy to repair and maintain
  • Always-on design is ready to deliver air when you need it
  • Refillable from an air compressor (or SCUBA tank using optional adapter -see below to order)
  • Over 25 years of service to the military, tested and approved by the US Navy
  • Over 250,000 units sold worldwide since 1979
  • Includes custom holster to attach to a modular-type vest, ideal for Switlik Modular Aircrew Vest
  • Mouthpiece cover and lanyard included
  • 1.7 CF - 30 Breaths at the surface
  • FULL MANUFACTURER’S WARRANTY
UPGRADES:
Submersible Systems Spare Air Yoke Refill Adapter Add $44.95
Options: 



Spare Air Safety Leash $11.95

Spare Air Travel Pack $17.95

Spare Air Scuba Tank Refill Adapter $44.95

  $299.00

ask an expert



Mfg Part Number :
RAS3

H2O Redundant Air System 3

 



  • Free Tank mount bag included
  • Station Filler included
  • Nitrox Compatible to 40% (The Recreational Limits of Nitrox)
  • RG3V balanced diaphragm environmentally sealed 1st stage 
  • 2nd stage swivel eliminates jaw fatigue and adds to overall comfort
  • Diver Air "On" and "Off" Switch 
  • Bright "Hi-Viz" neon yellow cover 
  • Available with 13 cubic foot or 19 cubic foot 3000 psi aluminum cylinder   
  • FULL MANUFACTURER'S WARRANTY
UPGRADES:
Scuba Tank Carrier Add $12.95
Air System with 19 cubic foot Tank Add $38.00
Options: 



Deluxe Diver Tool And Repair Kit $34.95

Trim Weight Tank Pouch $10.00

Deluxe Tank O-Ring Kit and Key Chain $5.95

  $439.95

ask an expert



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