\u201cZEN is a state of calm attentiveness where actions are guided by intuition rather than by conscious effort.\u201d* This is our ZEN of diving\u2014you 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.<\/p>\n
First & Second Stage Regulators<\/p>\n
Certification EN 250\/2014 A over 10\u00b0 C<\/p>\n","protected":false},"excerpt":{"rendered":"
First stage:
\n– New piston 1st stage with INT or DIN 300bar connection.
\n– 4 L.P. ports, 1 HP port for optimal hose orientation.
\n– Direct external IP calibration system for precise pressure adjustment.
\n– IP calibration value: 9.5-10bar for consistent performance.
\n– New optimized 1st stage design for maximum flow.
\n– Conical filter for improved filtration in both versions.
\n– Single maintenance kit for both INT and DIN versions.
\n– Increased water passage slots for better pressure balance.
\n– Enlarged tool housing holes for easier servicing.
\n– CE EN250 certification pending for warm water use.
\n– Glossy finish with \u201cGun Metal\u201d DIN wheel.
\n– Interchangeable parts with AC25 and AC2 models.<\/p>\n
Second stage:
\n– Downstream system
\n– Adjustable Venturi effect
\n– Patented antifriction lever
\n– Dual-injection, enlarged purge button
\n– Radial pressure transmission openings
\n– Anti-scratch surface
\n– Bayonet-type cap holder with security lock
\n– Removable exhaust tee without tools<\/p>\n","protected":false},"featured_media":23367,"template":"","meta":[],"product_brand":[60],"product_cat":[73],"product_tag":[],"class_list":["post-1227","product","type-product","status-publish","has-post-thumbnail","product_brand-cressi","product_cat-first-second-stage-regulators","pa_style-int","first","instock","sale","product-type-external"],"yoast_head":"\n