AC5 / Zen (red) [INT]

“ZEN is a state of calm attentiveness where actions are guided by intuition rather than by conscious effort.”* This is our ZEN of diving—you become one with the water, calm, attentive, breathing in and out intuitively without effort. This regulator offers an ultra-lightweight and compact design to minimize jaw strain even during long dives. Paired with our AC5, a piston-controlled first stage, it represents simplicity, robustness, and reliability. Maintenance is straightforward, fast, and cost-effective thanks to an ergonomic design that allows quick disassembly and reassembly without specialized tools, reducing downtime and maintenance costs. The ZEN/AC5 features an optimized design for maximum airflow and a extra large conical filter for improved filtration in both DIN and INT versions. Enlarged water passage slots ensure efficient rinsing, providing smooth, clean functionality and a true ZEN state of mind.

Technical Features

First stage:
- New piston 1st stage with INT or DIN 300bar connection.
- 4 L.P. ports, 1 HP port for optimal hose orientation.
- Direct external IP calibration system for precise pressure adjustment.
- IP calibration value: 9.5-10bar for consistent performance.
- New optimized 1st stage design for maximum flow.
- Conical filter for improved filtration in both versions.
- Single maintenance kit for both INT and DIN versions.
- Increased water passage slots for better pressure balance.
- Enlarged tool housing holes for easier servicing.
- CE EN250 certification pending for warm water use.
- Glossy finish with “Gun Metal” DIN wheel.
- Interchangeable parts with AC25 and AC2 models.

Second stage:
- Downstream system
- Adjustable Venturi effect
- Patented antifriction lever
- Dual-injection, enlarged purge button
- Radial pressure transmission openings
- Anti-scratch surface
- Bayonet-type cap holder with security lock
- Removable exhaust tee without tools