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. Even with a light bite, a high level of stability is achieved so there is no fatigue from long periods of usage.

S-50 Air Refresher Filter
An active carbon filter absorbs smells while a metal fiber filter eliminates particles as small as 10 microns, ensuring the diver breathes the cleanest and purest air every breath.

Features:

First stage (R-300)

• Over-Balanced diaphragm first stage
• Two H.P. ports and four L.P. ports
• Hi-Flow 1/2 inch primary port
• Protective Rubber Sleeve

Second stage (S-50)

• Universal swivel hose joint
• Air Refresher filter delivers the cleanest air every breath
• Dynamic airflow hose
• Ortho-consciously designed mouthpiece