The AC5 is a piston-controlled first stage that represents the workhorse of the diving industry: simple, robust, reliable! At Cressi, all piston first stages feature our proprietary external direct adjustment system, reducing the regular need for replacement parts or shims, thus minimizing service costs over many years. The AC5 boasts an optimized design for maximum flow and a conical filter for improved filtration in both versions, DIN or INT. Enlarged water passage slots allow for perfectly efficient rinsing, better pressure balance, and enlarged tool housing holes for easy maintenance.<\/p>\n
First Stage Regulators<\/p>\n
The 1st stages and hoses are sold ONLY as a replacement for the regulator combination for which its use is envisaged under the regulatory requirements in force. Therefore it may only be used as a replacement for the combination with second stages called for in the EC certificate for the type that concern it as well as the EC declaration of conformity for the product according to Regulation (EU) 2016\/425, which can be viewed at www.cressi.com. Cressi Sub declines all responsibility for any other use that does not conform with the requirements dictated by the regulations in force. The combinations of the certified Cressi regulators are contained in the last page of the Regulator user manual which can be read or downloaded from www.cressi.com<\/p>\n","protected":false},"excerpt":{"rendered":"
– 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.
\n– Weight, INT version: 670g
\n– Weight, DIN version: 495g<\/p>\n","protected":false},"featured_media":43782,"template":"","meta":[],"product_brand":[60],"product_cat":[261],"product_tag":[],"class_list":["post-9899","product","type-product","status-publish","has-post-thumbnail","product_brand-cressi","product_cat-first-stage-regulators","pa_style-din","first","instock","sale","product-type-external"],"yoast_head":"\n