APEKS 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).