MC9-SC 1St Stage Only is a premium Cressi DIN300 regulator first stage built for divers who want consistent airflow, compact design and sealed environmental protection. Its hyperbalanced in-line diaphragm system supports smooth breathing performance, while the sealed chamber helps protect internal components from water, silt and contamination. Compact, durable and dependable, the MC9-SC is a strong choice for compatible Cressi regulator builds, upgrades and replacement first-stage setups.
Overview
The MC9-SC 1St Stage Only is designed for divers who want a compact sealed first stage with reliable air delivery and clean hose routing. Its sealed chamber system helps protect the internal mechanism from contaminants, making it suitable for more demanding underwater conditions.
The hyperbalanced diaphragm design supports consistent breathing performance as depth and cylinder pressure change. As a first-stage-only product, it must be paired with compatible second stages, hoses and accessories to complete the regulator system.
Specifications
- Product type: Regulator first stage only
- Brand: Cressi
- First stage: Hyperbalanced in-line diaphragm
- Connection: DIN300
- Ports: 2 HP ports and 4 LP/MP ports
- System: Sealed chamber protection
- Reference: HZ820096
- Best for: Compact sealed Cressi regulator builds and upgrades
Features
- Hyperbalanced diaphragm design supports consistent air delivery
- Sealed chamber helps protect internal components from contamination
- In-line first-stage shape keeps the setup compact and stable
- DIN300 connection suits compatible DIN cylinder valves
- 2 HP and 4 LP/MP ports allow practical scuba hose routing
- Durable first-stage construction supports regular dive use
- Suitable for demanding recreational and cold-water-style configurations
- Ideal as a replacement first stage or custom regulator build component
Frequently Asked Questions
What is the MC9-SC 1St Stage Only used for?
The MC9-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 second stages and accessories.
What does SC mean on the MC9-SC?
SC refers to the sealed chamber system. This helps protect the first stage’s internal working components from water, silt and environmental contamination.
Is this a complete regulator?
No. This product is the first stage only. It must be paired with compatible second stages, hoses and accessories to create a complete scuba regulator system.
What does DIN300 mean?
DIN300 means the first stage uses a secure threaded connection designed for compatible DIN cylinder valves rated up to 300 bar.
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