Tusa R-800 / S-11 Regulator

The RS-811 features a balanced piston first stage, offered in both yoke and DIN configurations. This compact, lightweight first stage delivers instant and consistent airflow by way of two H.P. and four L.P. ports. The RS-811 and SS-11 safe-second feature the Advanced Flow System (A.F.S) and a venturi adjustment lever in a compact case design.