The Cressi AC5 plus Zen Regulator is a simple and dependable regulator system designed for dive schools, rental fleets and professional dive centres. Warm water certified and built for durability, it delivers reliable performance, easy maintenance and lightweight comfort for new and experienced divers alike.
Key Features:
Warm Water Certified: Certified to EN 250 2014 A for use in water temperatures above 10 degrees Celsius.
Unbalanced Piston First Stage: Simple and dependable design that is easy to maintain and ideal for high use environments.
External Intermediate Pressure Adjustment: Allows technicians to fine tune intermediate pressure while the regulator is attached to the cylinder to help keep it in service between scheduled maintenance.
High Capacity Conical Filter: Larger surface area design traps impurities before they reach internal components to help extend service life.
Port Configuration: Includes 1 7 sixteen inch HP port UNF and 4 3 eight inch LP ports UNF for versatile hose routing.
Large Hydrostatic Openings: Make the first stage easy to rinse between dives, efficiently removing salt and debris.
Gun Metal Chrome Plated First Stage: Durable finish designed to withstand demanding rental and training use.
Downstream Demand Valve System: Simple and dependable second stage offering reliable performance with a fail safe design.
Adjustable Venturi Control: Maximises airflow in dive mode and helps prevent free flows when the regulator is on the surface.
Thermoconductive Polymer Second Stage: Lightweight construction with metal like heat transfer properties for reduced weight and added durability.
Radial Pressure Openings: Evenly distribute water pressure across the diaphragm to help reduce free flows and deliver air only when needed.
Large Purge Button: Easy for new divers to locate and operate during training and rental use.
Compact And Lightweight Design: Second stage weight without hose is 149 grams for reduced jaw fatigue and improved comfort.
Compatible Service Platform: Shares parts compatibility with AC25 and AC2 models and uses a single maintenance kit for INT and DIN versions to simplify servicing and reduce costs.
With its straightforward design, low maintenance requirements and proven durability, the Cressi AC5 plus Zen Regulator is a cost effective and reliable choice for professional dive operations and training environments.


