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Tusa RS-681 Regulator

SKU RS-681U-BK
$699.00
In stock
1
Product Details

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RS-681 is TUSA's latest regulator that delivers superior performance and build quality in a compact lightweight design. The R-600 paired with the newly developed S-81 second stage further pushes the regulator engineering and performance envelope.

The ultra-compact balanced diaphragm R-600 first stage is incredibly small and weighs only 630g. The R-600 is configured with 2 HP and 4 LP ports allowing for versatile hose placement. A DIN conversion kit (DIN-R600) and an environmental kit (EK-600) is also available.
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First stage (R-600)

  • Ultra-compact balanced diaphragm first stage
  • EK-600 cold water kit available for temperatures below 50°F/10°C
  • DIN-R600 conversion kit available (300bar/4350psi)
  • 2 HP and 4 LP ports

Second stage (S-81)
  • Elliptical low-profile case design
  • S.E.A. – Sequential Exhaust Assist technology (Pat P.)
  • Venturi adjustment lever
  • Built-in moisture exchange plate
  • Attached to MIFLEX® hose for exceptional flexibility
  • Breathing Resistance Adjustment Control
  • Ortho-consciously designed mouthpiece
  • Eligible for TUSA CARE Free Parts for Life Program - USA Only

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TEFLON COATED PLATE TEST
  • The Teflon Coated Plate prevents “dry mouth.” Condensation forms on the brass plate adding moisture to the dry air released from scuba cylinders.
CLICK SPRING ADJUSTMENT
  • The Click Spring Adjustment feature is exclusive to TUSA. It is a five (5)-position adjustment knob designed to better control breathing resistance.
COLD WATER READY
  • The Cold Water Ready feature enables the diver to use the regulator in water temperatures below 50° F / 10° C.
ENVIRONMENTALLY SEALED 1ST STAGE
  • The use of a secondary diaphragm and piston sealing the 1st stage preventing contamination or freezing when the regulator is submersed in contaminated or freezing water.
ORTHO-CONSCIOUS MOUTH PIECE
  • The Ortho-Conscious Mouth Piece feature prevents jaw fatigue. The ridges and flexible material allow the diver to have more control of the mouth piece and reduces tension in the jaw.

SEQUENCE EXHAUST ASSIST SYSTEM

  • The Sequence Exhaust Assist System gives the diver less resistance when exhaling due to its unique double exhaust design. The diver experiences smooth breathing cycles reducing air consumption and fatigue.

VENTURI FLOW ADJUSTMENT

  • The Venturi Flow Adjustment allows for ease of breathing by controlling the direction of air through the mouthpiece



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