Open Water Scuba Diver Certification price of $300 is all inclusive.



Part Number:HX901000 Manufacturer: Cressi USA 2ND STAGE:

The AC25 is the third generation of Cressi’s IP adjustable balanced piston first stage.

It features 2 high-pressure ports and 5 low-pressure ports. 4 low-pressure ports are located on a rotating turret that ensures that regulator and instrument connections are always in the right position. The fifth port is a co-axial Hi-Flow port and is located at the top of the turret. The rotating turret swivels on 360° axis and features 5 low-pressure ports designed to allow the use of more connections without interfering between them.

It features the external direct IP adjustment system that can be set using a simple Allen key.

The hi-flow conic shape filter is the same for INT and DIN. The spring and the spring bush are coated preventing rust. Its technologically advanced design delivers consistent intermediate pressure and high performance even with low tank pressures. The AC25m it features a matte finish, in gun metal-coated brass.

It is combined with the Compact second stage. The AC25m/Compact is available in INT version.

The performance of the regulator is equal to if not greater than more sophisticated products because it maintains a WOB (Work of Breathing) under 0.78 Joule/liter.

The regulator meets the requirements of the last European regulation EN 250:2014 and it is certified for use in water over 10°C (50 F).


  • 3rd generation Cressi’s IP adjustable balanced piston first stage
  • 2x 7/16” HP ports UNF
  • 5x 3/8” LP ports UNF, 1 port on the turret top
  • Operating pressure:
  • INT version: 230 BAR | 3,336 PSI
  • DIN version: 300 BAR | 4,351 PSI
  • Calibration pressure: 9.8÷10 BAR | 142÷146 PSI
  • 360° revolving head
  • Realized in brass-coated, with a matte finish
  • The sintered conical filter protects from any impurity



  • Downstream system
  • Adjustable venturi effect
  • Patented antifriction lever
  • Big purge button
  • Anti-scratch surface
  • Bayonet-type cap holder with security lock
  • Removable exhaust tee
  • Weight without hose: 135 gr


  • Average Cracking effort 6 mbar
  • Average breathing effort 1 J/l

JACKETED HOSE extremely light and flexible weight: 153 gr

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