1st STAGE AC2:
Simple piston 1st stage, a "work mule" that is affordable, simple, reliable and robust, suitable for intense use. This first stage is appreciated by dive centers and professional companies who consider it to be a very rentable tool, due to its low cost and practically nonexistent need for maintenance, as well as a surprising level of performance.
Conical filter
One 7/16” high pressure port (HP) and four 3/8” low pressure ports (LP).
Complete maintenance kit which includes very affordable spare parts. Weight: Int: 615 g.
2nd STAGE XS COMPACT:
New ultra simplified monocoque second stage in ABS  elastomer, small (6 cm in diameter), very light (145 g) and robust, designed and built to have a minimum number of components.
Asymmetrical perforation in the front cap.
Exhalation effort particularly reduced.
Practically integrated purge button,.
Technical Features 1st Stage :
   - Piston design.
   - 1 7/16” HP ports UNF.
   - 4 3/8” LP ports UNF.
   - Operating pressure:
   - INT version: 230 bar | 3,336 psi.
   - Calibration pressure:
   - 9.8÷10 bar | 142÷146 psi.
   - Brass body Electroless Nickel plated.
   - High capacity conical fi lter electroless nickel plated.
   - Long lasting piston: AISI 316 stainless steel.
   - Extremely easy in maintenance since IP is adjustable from the outside.
   - Stainless steel spring.
   - Flow rate: 74.16 cu ft/min (2,100 l/min).
   - Yoke version weight: 22.4 oz / 635 g.
Technical Features 2nd Stage :
   - 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.
Combination Performance :
   - Average Cracking effort 6 mbar.
   - Average breathing effort 1 J/l.
JACKETED HOSE extremely light and flexible weight: 153 gr.