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.
- Ceramic Moisture Plate
 - Click Spring Adjustment
 - Sequence Exhaust Assist System
 - Venturi Flow Adjustment
 - Ortho-Conscious Mouth Piece
 
