MC11 SC 1st Stage Only is a compact sealed-chamber regulator first stage designed for divers who want high-performance breathing in a lightweight, streamlined format. Its hyperbalanced diaphragm system, dry sealed chamber and Cressi PressureSync technology help deliver smooth, consistent air delivery while protecting internal components from water, corrosion and contaminants. The MC11 SC is a refined first stage for advanced recreational setups, travel systems and compatible Cressi regulator configurations.
MC11 SC 1st Stage Only Overview
The MC11 SC 1st Stage Only is designed for divers who want a compact, high-performance first stage with sealed-chamber protection. The SC system keeps the working components dry and clean, helping preserve lubrication and reduce exposure to corrosion.
Its ultra-compact body adds minimal weight and bulk compared with the standard MC11, while still offering 2 high-pressure ports and 4 medium-pressure ports for a clean, flexible hose setup.
Specifications
- Product type: Regulator first stage only
- Brand: Cressi
- Model: MC11 SC
- Use: Scuba diving regulator configuration / replacement first stage
- System: Dry sealed chamber first stage
- Technology: Hyperbalanced diaphragm technology
- Breathing support: Cressi PressureSync system
- HP ports: 2 HP outlets, 7/16 UNF
- MP ports: 4 MP outlets, 3/8 UNF
- Service pressure: 300 bar DIN / 232 bar INT
- Calibration pressure: 9.5–10 bar
- Body: Electroless nickel-plated brass
- Diaphragm: Liquid silicone moulded diaphragm
- Filter: High-capacity electroless nickel-plated conical filter
- Nozzle: Removable AISI 316 nozzle
- Protection: Shockproof technopolymer protection
- Flow rate: 4500 l/min
- Weight: Approx. 458 g DIN / 603 g INT
- Best for: Compatible Cressi regulator setups, streamlined diving, travel and cold-water-ready configurations
MC11 SC 1st Stage Only Features
- Dry sealed chamber helps protect internal components from water and contamination
- Hyperbalanced diaphragm system supports smooth and consistent air delivery
- Cressi PressureSync helps reduce inhalation pressure drop
- Ultra-compact design keeps the regulator setup streamlined
- 2 HP and 4 MP ports support flexible hose routing
- Electroless nickel-plated brass body improves durability
- Shockproof technopolymer protection helps protect the first stage body
- Available in DIN and INT versions, depending on diver preference and cylinder setup
MC11 SC 1st Stage Only FAQs
What is the MC11 SC 1st Stage Only used for?
The MC11 SC 1st Stage Only is used as the first stage in a compatible scuba regulator setup. It connects to the cylinder valve and supplies intermediate-pressure air to the second stage and accessories.
Is the MC11 SC suitable for cold water?
Yes. The MC11 SC uses a dry sealed chamber system designed to keep the internal working components dry and protected, making it suitable for cold-water-ready regulator configurations.
What is the difference between DIN and INT versions?
The DIN version screws directly into a compatible DIN cylinder valve and is rated up to 300 bar. The INT version, also known as A-clamp/yoke, clamps over a compatible valve and is rated up to 232 bar.
Is this a complete regulator?
No. This product is the first stage only. It must be used with compatible second stages, hoses and accessories as part of a complete certified regulator configuration.
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