Regulator Piston R600 Yoke + Octopus S81 Tusa (RS681) W/ LP Hose Braided

REGULATOR 1ST STAGE TUSA R-600 YOKE + OCTOPUS 2ND STAGE TUSA S-81 + LP HOSE 2ND STAGE RUBBER BLACK

The 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 newly designed S-81 second stage offers the following features:

S.E.A. - Sequential Exhaust Assist

The Sequential Exhaust Assist (S.E.A.) is a revolutionary new second stage design featuring a dual exhaust system. The S.E.A. system consists of an enlarged primary and an auxiliary exhaust. The auxiliary exhaust, located on top of the S-81 elliptical case, works in conjunction with the primary to significantly decrease exhalation resistance.

Exhalation resistance directly affects the diver’s natural breathing cycle. By reducing this resistance or increasing exhalation performance, the diver breathes more naturally and comfortably reducing respiration rate and air consumption. Paired with the R-600 first stage, the S-80 offers a seemingly effortless underwater experience regardless of the workload.

Venturi Adjustment

The addition of a venturi adjustment lever on the S-80 allows the regulator to power assist the diver when underwater utilizing the natural venturi effect. The diver can also adjust the lever to prevent free flow such as on a surface swim.

Moisture Exchange Plate

The S-81 second stage incorporates a moisture exchange plate that captures condensation produced by inhalation and exhalation efforts. This condensation increases the humidity of the air breathed and helps to reduce that “dry mouth” sensation often experienced while diving.

Breathing Resistance Adjustment Control

The Breathing Resistance Adjustment Control on the S-80 allows the diver to simply adjust the flow of air according to their needs. The easy-adjust multiple click knob allows you to quickly and finely tune resistance.

Miflex® Hose

The Miflex hose is light weight and extremely flexible. The multi-layer construction shows excellent abrasion resistance and allows for a longer lifespan found in traditional hoses. This kink resistant hose offers a burst resistance twice that of traditional hoses. The Miflex hose is certified to EN250 standards.

FEATURES :

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

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