US4 1st Stage Regulator INT

Features:

– The first stage is a balanced diaphragm type that offers consistent performance from start of dive until end of dive, regardless of depth.
– 1 HP port and 4 MP ports are available.
– Pneumatically-balanced second stage results in smooth, easy breathing.
– The large purge button on the AT20 is easy to operate even with thick gloves.
– The integrated venturi control provides a performance boost at depth while preventing unwanted free-flow at the surface.
– The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue.
– Designed for warm water use above 10º C (50º F).