Scubapro MK21 First stage
A NEW compact balanced piston-controlled first stage with exceptional SCUBAPRO breathing performance at a mid-range price. Compact in size (16mm smaller than the MK25) but not in features, this modern, edgedesign first stage has a ‘smart’ hose layout for perfect positioning and easy identification.
- Close to 20% smaller than our MK25
- Midrange piston 1st stage.
- Easy maintenance.
- Thermal exchange design with external fins, optimizing freezing resistance.
- Optional replaceable head for optimal positioning with 4 LP routing configurations (0°/30°) plus a 5th, central LP HF port. Ideal for Technical diving.
- Standard head with 4 LP hose routing (+/20°)
- 2 HP ports, one on each side of the body.
- Polished chrome plated marine grade brass
Information
First Stage
- Air-balanced flow-through piston provides constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.
- Polished chrome-plated marine grade brass body is close to 20% smaller than the MK25, making it an easy travel companion.
- Unique thermal exchange design with external fins optimizes freezing resistance.
- Two high pressure ports, one on each side of the body, allow the first stage to be positioned either up or down.
- Standard “smart” hose routing cap offers four low pressure ports angled for more convenient hose routing (+/- 20º).
- Optional hose routing cap increases routing configurations with four angled low pressure ports (0°/30°) plus a fifth centralized high-flow low pressure port, ideal for technical diving.
- Redesigned yoke allows for easier mounting on a cylinder, and a redesigned cap protects components from water intrusion after the dive.
- Weight: INT 232: 780G; DIN 300; 570g.
- Airflow at 200bar: (l/min): >7500.
- Intermediate pressure: 9.0-9.8 bar
Second Stage C370
- Air-balanced valve for smooth inhalation effort at varying depths and supply pressures.
- Compact rugged fiberglass reinforced nylon casing and new exhaust tee take up little space in a dive bag.
- Stainless steel frame on the front cover adds the SCUBAPRO signature.
- The poppet and lever allows the design to maintain the same overall size as the C350.
- The exhaust tee is based on the S620 Ti’s design and contributes to better work of breathing (a 10% improvement over the C350).
- User controls include a diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA).
- Large purge button is easy to activate, even wearing thick gloves.Super-flow hose features an oversized bore that allows more air to flow on each inhalation.
- Compact Hi-Flow mouthpiece improves airflow as well as mouth comfort, fitting all mouth sizes, from largest to smallest.
- Weight: 171g.
- Airflow at 200bar: (l/min): 1600 bar
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