The RS-350 Imprex regulator is the flagship model of TUSA regulators, possessing a wide variety of functions. The R-300 first stage delivers a balanced diaphragm system featuring a minimum variation in intermediate pressure in relation to changes in residual tank pressure. The ports (H.P.x2, L.P.x4) feature left-right symmetry for easier tank adjustments, even for novice divers. Universal swivel hose joint. For optimum performance and comfort, a swivel joint is fitted between the second stage of the RS-350 and the joint section of the low pressure hose. The swivel joint allows flexibility of the hose to eliminate hose tension at the mouthpiece for a more natural and comfortable bite. Ortho-consciously designed mouthpiece. The new mouthpiece, developed with engineering in mind, further enhances the comfort of bite, fit, and stability.
The R-400 First stage features a balanced diaphragm system. This balanced diaphragm system maintains minimum variation in intermediate pressure in relation to changes in residual tank pressure. The ports feature two high flow low-pressure ports to optimize second stage performance for easier breathing. The S-60 second stage features a diver adjustable sensitivity control to deliver air smoothly with each breath. The exhaust valve features a large and flexible design for extremely low exhaust resistance. The balanced diaphragm system features a minimum variation in intermediate pressure in the relation to changes in residual tank pressure. The diaphragm first stage also offers excellent performance in all water conditions due to its sealed design.