{"product_id":"mc9-1st-stage","title":"MC9 1st Stage","description":"\u003cp data-end=\"338\" data-start=\"0\"\u003eCressi MC9 1st Stage is a lightweight balanced diaphragm regulator designed for reliable high performance diving in demanding conditions. Made in Italy, it combines advanced hyper balancing with optimised internal airflow to maintain consistent intermediate pressure throughout the dive, particularly during the most critical final phase.\u003c\/p\u003e\u003cp data-end=\"2153\" data-start=\"340\"\u003eKey Features:\u003cbr\u003eBalanced Diaphragm First Stage: Ensures stable and consistent performance across varying tank pressures.\u003cbr\u003eHyper Balancing System: Provides a slight increase in intermediate pressure as cylinder pressure decreases to maintain peak performance at the end of the dive.\u003cbr\u003eOptimised Airflow Chamber: Directs air volume straight to the LP outlets to minimise pressure drop during forced breathing to 0.5 BAR.\u003cbr\u003eHigh Pressure And Low Pressure Ports: Configured with 2 HP outlets seven sixteenth UNF and 4 LP outlets three eighth UNF for flexible hose routing.\u003cbr\u003eLightweight Optimised Brass Body: Wall thicknesses are engineered to reduce overall weight without compromising strength.\u003cbr\u003eElectroless Nickel Plated Brass Construction: Enhances durability and corrosion resistance in demanding marine environments.\u003cbr\u003eStainless Steel AISI316 HP Seat: Harder than traditional brass seats to resist deformation from metallic microparticles and extend service life.\u003cbr\u003eReplaceable High Pressure Seat: Allows substitution during servicing to maintain long term reliability.\u003cbr\u003eHigh Capacity Conical Filter: Electroless nickel plated filter improves air delivery and protects internal components.\u003cbr\u003eAnti Pressure Drop Pneumatic Spring: Maintains airflow stability during high demand breathing.\u003cbr\u003eStainless Steel Setting Spring: Features micropeening treatment for improved fatigue resistance.\u003cbr\u003eReplaceable Cylinder With AC16 Properties: Provides anti friction and anti corrosion performance.\u003cbr\u003eElastomer Protective Case: Semi flexible elastomer cover protects the first stage from impacts and erosion.\u003cbr\u003eHigh Flow Capacity: Delivers a flow rate of 4500 litres per minute for demanding dive conditions.\u003cbr\u003eYoke Version Specifications: Service pressure of 232 BAR and calibration pressure of 10 BAR with a yoke version weight of 590 g or 20.81 oz.\u003c\/p\u003e\u003cp data-end=\"2422\" data-is-last-node=\"\" data-is-only-node=\"\" data-start=\"2155\"\u003eCressi MC9 1st Stage is engineered for divers who demand dependable airflow, reduced breathing effort and long term durability. Its refined internal design and robust materials make it a reliable choice for consistent performance in a wide range of diving situations.\u003c\/p\u003e","brand":"Cressi Australia","offers":[{"title":"YOKE \/ NA \/ NA","offer_id":47664331882735,"sku":"HZ820097","price":379.0,"currency_code":"AUD","in_stock":true},{"title":"DIN \/ NA \/ NA","offer_id":47664331915503,"sku":"HZ820098","price":379.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/6620\/7471\/files\/HZ820097.jpg?v=1770707767","url":"https:\/\/www.cressi.com.au\/products\/mc9-1st-stage","provider":"Cressi Pacific","version":"1.0","type":"link"}