AT20 US4 Regulator and Octopus

*Yoke in stock, DIN available on request

This is an ideal entry-level regulator that can spoil divers in a hurry.

This high-performance regulator boasts a balanced disphragm first stage (US4) coupled with a pneumatically balanced second stage and matching octopus (AT20).

The smooth, quiet breath is sure to enhance your diving enjoyment.

Designed for water temps above 50°F / 10°C

The Comfo-bite™ mouthpiece, with its patented bridge virtually eliminates jaw-fatigue

Compatible with EAN40 out of the box.

First Stage:

• The US4 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

Second Stage:

• Pneumatically-balanced AT20 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 freeflow at the surface.
• An extremely efficient exhaust valve improves the breathing performance of the regulator
• The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue
• Offers a compact, integrated exhaust tee