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