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Cressi Sub MC9-SC/Compact Pro Regulator


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Product Description

This premiere travel regulator packs maximum performance into minimal space. A true featherweight second stage, the XS Compact is built from durable non-corrosive lightweight techno-polymers to eliminate jaw fatigue. Compact shape reduces weight and in-water drag. The second stage has a dependable downstream demand valve mechanism. The flow of air is channeled to the mouthpiece by injection, creating a venturi effect enhancing the performance. The 2nd stage comes with a flow deviator that acts on the venturi effect, with dive/pre-dive adjustment function. Large soft purge cover allows easy clearing of 2nd stage. Nearly all of the face acts as a purge button for easy access and fast clearing. Streamlined exhaust tee directs bubbles to the side for a clear field of view and a comfortable silicone mouthpiece for added comfort on long dives. Easy to pack and easy to dive, the XS Compact is a great 2'nd stage regulator. 

The Balanced 1st stage MC9 SC hyper-balanced diaphragm actuated 1st stage has a lightweight body covered by a protective techno-polymer elastomer shell. The regulator is equipped with four low pressure 3/8" threaded and two high 7/16" threaded pressure ports. Internally the 1st stage is coated with an anti-friction anti-corrosion material that reduces resistance and allows the critical components to move freely. This makes the components perform and last longer between annual servicing and increases performance. The balanced diaphragm, chrome plated marine brass first stage regulator is inherently environmentally sealed. The benefit of this type of first stage design is that none of the delicate internal parts are exposed to contaminants such as salt, sand, chlorine or pool acids. These environmental contaminants can cause corrosion and mineral deposits to form on the internal mechanism deteriorating regulator performance. The 1st stage MC9 - SC is identical to model MC9, but with a special seal chamber (SC) which completely isolates the diaphragm and spring from contact with water. Ideal for diving in waters that are rich in suspension and mineral salts, for archaeological work, for potholing and diving in cold waters. 

Research on internal air passages and incorporating a special assist chamber has lowered the drop of intermediate pressure upon inhalation and has kept this drop at a minimum, guaranteeing higher performance in any situation. Hyper-balancing allows for an increase of the intermediate pressure at maximum depths and when experiencing low pressure in the Scuba cylinder, offering higher performance at maximum depths and during the ascent phase of the dive. Regulator weighs 33.1oz (938g) with the Hose, comes with an Owner's Manual and is covered by a 2 Year Warranty.


  • Regulator Weight: 33.1oz (938g)
  • Lightweight Jacketed 3/8" Threaded Low Pressure (LP) Hose
  • Construction: Durable Non-Corrosive Lightweight Techno-Polymers
  • Silicone Mouthpiece: Less Jaw Fatigue
  • Streamlined Exhaust Tee: Directs Bubbles for Clear Field of View
  • Hyper-Balanced Diaphragm Design
  • Two 7/16" Threaded High Pressure Ports
  • Four 3/8" Threaded Low Pressure Ports
  • Body: Chrome Plated Marine Brass
  • Shell: Techno-Polymer Shell Protect Body
  • Self-Lubricating Internal Coating
  • Anti-Pressure Drop Pneumatics
  • Special Seal Chamber (SC)
  • Completely Isolates Diaphragm & Spring from Contact with Water
  • Ideal for Diving in Waters: 
    Rich in Suspension and Mineral Salts 
    Archaeological Work 
    Potholing and Diving in Cold Waters
  • Requires Less-Maintenance

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