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SKU: SCU10721300
Reg. Price: $314.00
Our Price: $314.00
on orders of $25.00 or more.
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Description  more details

ScubaPro MK21 DIN First Stage Regulator

Designed for Travel, the MK21 First Stage is 20% smaller than the MK25!

A new compact, balanced piston-controlled first stage with exceptional SCUBAPRO breathing performance at a mid-range price.


  • The high airflow delivery to the second stage ensures unaffected breathing effort, no matter the tank pressure or depth.
  • Very good resistance to freezing for a compact first stage, due to the external fins which optimize thermal exchange. 
  • Compact in size(16mm smaller than the MK25) but not in features, this modern, striking first stage has a "smart" hose layout for perfect positioning and easy identification. 
  • A balanced piston allows the use of lighter and more sensitive components, resulting in an ultra-fast breathing response, instant deliver of air on demand, and extra-high airflow, especially in low tan pressure ranges. 
  • Balanced-piston first stages are the first choice of demanding deep sport divers and professionals. 
  • First stages with air-balanced pistons deliver significantly more air to the second stage than any other first stage, while their performance is totally unaffected by changing tank pressure and depth. 

The standard cap (+/- 20 degrees routing) can be replaced with an optional cap, which has 4-hose low-pressure routing configurations (0 degrees/30 degrees) and a 5th central High Flow LP port. 


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