Search Results for “second stage” (291 Products)

All(291) New(263) Used(28)

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$110.00 Save: $10.05 (9%)

$99.95

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Temporarily On Backorder Free Shipping

  • Hookah: Surface Supplied Breathing
  • Used by Commercial Divers
  • Downstream Demand Valve
  • Robust, Over-Built Design

$150.00

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In Stock Free Shipping

  • Elite Performer
  • Patented Design
  • Dive/Pre-Dive Venturi Lever
  • Pneumatically Balanced Valve

  • Compact & Lightweight
  • For Travel or Smaller Divers
  • Air-Balanced Valve Technology
  • Rugged Fiberglass-Reinforced Nylon
  • Pneumatically balanced 2nd stage design
  • All metal valve body
  • Heat exchange for cold water use
  • Dive/Pre-Dive Venturi switch

Available in 2 colors

  • Classic Downstream Valve
  • Reinforced Techno Polymer Casing
  • Reversible Hose Attachment
  • Venturi-Initiated Vacuum Assist (VIVA)

$66.00 Save: $6.05 (9%)

$59.95

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In Stock Free Shipping

  • Attaches multiple 2nd stages to single hose
  • Chromed brass construction
  • Easy to install
  • Factory cleaned - Viton o-ring
  • Large Venturi Lever w/Soft Touch Rubber Grip
  • Comfo-Bite Mouthpiece Virtually Eliminates Jaw-Fatigue
  • Smooth, Easy Breathing
  • Easy-to-Grip Opening Effort Control Knob
  • Balanced downstream internal second stage valve
  • Second stage adjustment knob fine-tunes inhalation effort
  • Cutting-edge Breathing Technology
  • Streamlined and Compact

  • Go-To Air Delivery System for Cold or Technical Diving
  • Cold Water Resistance from Metal Components
  • Air-Balanced Valve Technology
  • High Flow Exhaust Reduces Exhalation Effort
  • Durability Meets Comfort
  • Ice-Resistant Technology
  • Effortless Inhalation
  • Glove-Friendly Switch
  • Top Scubapro Breathing Performance
  • Durable All-Metal Casing & Housing
  • Air-Balanced Valve Technology
  • More Breathing Sensitivity from Larger Diaphragm
  • Balanced downstream demand valve
  • Custom designed 2nd stage
  • Specifically designed for full face mask
  • Easy to install and remove
  • Rugged Reinforced Techno Polymer Case & Cover
  • Long-Lasting Metal Valve Housing
  • Air-Balanced Valve Technology
  • Diver Adjustable Inhalation Effort & VIVA
  • Lower Work of Breathing
  • More Compact & Lighter Weight than S600
  • Air-Balanced Valve Technology for Effortless Airflow
  • Corrosion-Free Titanium Inlet Tube

$20.00 Save: $3.05 (15%)

$16.95

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In Stock

  • Allows attachment of multiple 2nd stages
  • Chromed brass construction
  • Easy to install
  • Factory cleaned Viton o-rings
$159.95

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Special Order Free Shipping

  • Compact, lightweight, and easy to clean
  • Venturi knob lets you make precise adjustments, even while wearing gloves
  • Comfo-Bite mouthpiece is soft yet sturdy and reduces jaw fatigue with its unique palate bridge
  • Rugged, durable polyurethane purge cover
  • Trap Door Access to Exhaust Valve
  • Ergonomic Dive/Pre-Dive Venturi Lever
  • Lightweight Regulator Design
  • Pneumatically Balanced Downstream Valve
$179.00

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In Stock Free Shipping

  • Elite Performer Design
  • Top Marks from Dive Lab
  • Pneumatically Balanced Valve
  • Dive/Pre-Dive Venturi Lever
$159.95

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Special Order Free Shipping

  • Lightweight, durable & easy-to-breathe design
  • Made of strong polycarbonate
  • Comfo-Bite mouthpiece is soft yet sturdy and reduces jaw fatigue with its unique palate bridge
  • Rugged, durable polyurethane purge cover
  • Pneumatically balanced demand valve design
  • Adjustable Venturi system, Ergonomic exhaust
  • Silicone orthodontic mouthpiece for comfort
  • Physical vapor deposition finish brass valve
$160.00

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In Stock Free Shipping

  • Classic Downstream Valve
  • Techno-Polymer Housing
  • Large Diaphragm & Purge
  • Venturi Dive/Pre-Dive Switch

$48.00 Save: $5.05 (11%)

$42.95

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In Stock Free Shipping

  • UNF male inlet to UNF female outlet threads
  • Marine grade brass fittings
  • Delrin collar shuts off gas flow
  • Prevents critical gas loss
  • Elliptical low-profile case design of 2nd Stage
  • Ultra-compact balanced diaphragm first stage
  • S.E.A. - Sequential Exhaust Assist technology (Pat P.)
  • 2 HP and 4 LP ports for 1st Stage
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