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SKU: MAR416167
Reg. Price: $400.00
Our Price: $349.95
on orders of $35.00 or more.
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Mares MV 12S Scuba Regulator

The 12S USA, uses tri-material valve technology.

Mares has designed a high performance compact regulator pairing the legendary 12S 1st stage with the classic performance of the MV 2nd stage. This regulator incorporates Mares legendary patented Vortex Assisted Design (VAD) and Dynamic Flow Control (DFC) for a high performing and reliable regulator. The all chrome plated marine brass first stage regulator is a balanced diaphragm design which is environmentally sealed.

The diaphragm membrane transmits the pressure changes to the internal mechanism eliminating the need for the surrounding water to enter the intricate mechanism. The benefit of this type of first stage design is that none of the internal parts are exposed to contaminants such as salt, sand, chlorine or pool acids. These environmental contaminants cause corrosion and mineral deposits to form on the internal mechanism deteriorating regulator performance.


  • Balanced Diaphragm
  • DFC System
  • Material: Chrome Plated Marine Brass
  • Environmentally Sealed Design
  • Design Provides Protection from Sand, Salt, Chlorine, Pool Acid and Contaminants
  • Tri-Material Valve Technology
  • 4 LP and 2 HP Ports


  • Symmetrical Shape: Left or Right Hand Usable
  • Light and Compact
  • Vortex Assist Design (V.A.D.) System
  • Case: Sturdy and Durable Techno-Polymer
  • Case has Superior Resistance to Abrasion
  • Reliable, and Simple Downstream Demand Valve Design


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