$ 449.00 USD
 More payment options

Pickup available at Cypress

Usually ready in 24 hours

The AT20 is the predecessor to the XTX20. We brought it back to the Apeks line up because it represents an excellent value. This is an ideal entry-level regulator that can spoil divers in a hurry.

This product qualifies for Free Parts for Life.

This high-performance regulator boasts an balanced first stage coupled with a pneumatically balanced second stage.

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 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
  • Available in yoke only

Second Stage:

  • 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 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
Connections Yoke only
Type of first stage Balanced diaphragm design
Body Type Cylindrical (US4)
Number of HP ports 1 (7/16" UNF)
Number of MP ports 4 (3/8" UNF)
Environmental Dry Kit None
First stage exterior Chrome over marine brass
Coldwater Use No, designed for temps above 50ºF / 10ºC
Type of second stage Pneumatically balanced
Integrated Venturi Lever Yes
Mouthpiece Comfo-bite™
Heat Exchanger for freezing resistance No
Overall Work of Breathing (WOB) scores Avg. 0.85 joules/liter
Nitrox compatible Yes to 40% O2 when new, out of the box / Can be O2 cleaned to 100%