Tusa RS-790 Regulator

Tusa RS-790 Regulator
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The RS-790 delivers performance, durability and comfort making it the ideal choice for discerning divers.

The R-700 is a balanced diaphragm first stage designed for cold-water use, it features a dry ambient pressure chamber that prevents water contact with the diaphragm maximizing performance in temperate water conditions below 50°F/10°C.  Additionally, the R-700 has an external rib section that nearly doubles the surface area for thermal exchange further reducing ice formaton that can lead to freeze up in extreme conditions.  The R-700 has two high pressure ports and four low pressure ports including two high flow (HF) that deliver up to a 15% increase in air flow.  It is available in both INT (yoke) and DIN versions.

First stage (R-700) 

  • Balanced diaphragm first stage with anti-freeze system
  • Dry ambient pressure chamber ideal for temperatures below 50°F/10°C
  • Ribbed section to increase heat transfer and resist freezing
  • Two H.P. ports and Four L.P. (2 standard/2 high flow) ports
  • High flow L.P. ports offer up to 15% increase in air flow
  • DIN version available as RS-790 DIN (300bar/4350psi)
  • Eligible for TUSA CARE Free Parts for Life Program - USA Only

Second stage (S-90)

  • Lightweight, compact composite case design
  • Pneumatically balanced system
  • Venturi adjustment lever
  • Ortho-consciously designed mouthpiece 
  • Eligible for TUSA CARE Free Parts for Life Program - USA Only