{"title":"First Stages","description":"\u003cp\u003eFirst stage regulators for sale online in Australia — balanced piston, diaphragm and environmentally sealed options.\u003c\/p\u003e","products":[{"product_id":"scubapro-mk25-evo-first-stage-regulator","title":"Scubapro MK25 EVO First Stage Regulator","description":"\u003cp\u003eThe MK25 EVO delivers an ultra-fast breathing response, great sensitivity and extra-high airflow, making it the ultimate do-it-all first stage for all water temperatures.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e*\tAir balanced flow-through piston in a chrome-plated brass body provides constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.\u003c\/p\u003e\u003cp\u003e*\tPatented XTIS (Extended thermal Insulating system) thermally insulates the inner mechanism from the environment, improving cold-water resistance and delaying ice formation in extreme cold-water conditions without compromising breathing performance.\u003c\/p\u003e\u003cp\u003e*\tAnti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures.\u003c\/p\u003e\u003cp\u003e*\tTwo opposing high pressure ports allow the first stage to be positioned either up or down.\u003c\/p\u003e\u003cp\u003e*\tFour high-flow and one axial super high-flow low pressure ports on a swivel turret maximize hose routing options.\u003c\/p\u003e\u003cp\u003e*\tExternal intermediate pressure adjustment enables technicians to fine-tune performance quickly and easily.\u003c\/p\u003e","brand":"Scubapro-Uwatec Australia Pty Ltd","offers":[{"title":"Yoke","offer_id":53726288904468,"sku":"4815219","price":635.04,"currency_code":"AUD","in_stock":true},{"title":"DIN","offer_id":53726288937236,"sku":"617493Q","price":635.04,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_43077629-aa0b-4ad8-b1ec-6efee306318d.jpg?v=1787816692"},{"product_id":"halcyon-h-75p-first-stage-regulator","title":"Halcyon H-75P First Stage Regulator","description":"\u003cp\u003eThe Halcyon H-75P First Stage Regulator is a high-performance scuba regulator engineered for reliability in technical and demanding dive environments. Halcyon regulators are built for cold water, deep diving, and overhead environments, delivering smooth and consistent airflow at any depth. Used by GUE divers and technical divers worldwide. Serviced and sold by Dive Centre Bondi, Sydney's authorised Halcyon dealer.\u003c\/p\u003e","brand":"Halcyon Manufacturing Inc","offers":[{"title":"Default Title","offer_id":53726288970004,"sku":"280452N","price":630.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_e70c5548-60b9-4c14-a80c-19fcd14ba96c.png?v=1787816690"},{"product_id":"scubapro-mk2-evo-first-stage-regulator","title":"Scubapro MK2 Evo First Stage Regulator","description":"\u003cp\u003eThe MK2 EVO is the only downstream piston-style first stage with internal components specifically designed to resist freezing in extreme cold water conditions. So you can expect top-notch breathing performance whether you're reef diving the Caribbean or wreck diving the Great Lakes.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e*\tClassic downstream piston design features a chrome-plated brass body with one high pressure and four low pressure ports.\u003c\/p\u003e\u003cp\u003e*\tPatented XTIS (Extended Thermal Insulating System) fully isolates the mechanical elements from the cold, increasing freezing resistance by an average of 50% over its predecessor without compromising breathing performance.\u003c\/p\u003e\u003cp\u003e*\tAdditional internal technical improvements include a spring insulating bushing and coating, an insulating piston bushing, an insulating sleeve and antifreeze cap, all of which contribute to the increase in freezing resistance.\u003c\/p\u003e\u003cp\u003e*\tFirst stage is 3.5mm smaller than its predecessor but houses an oversized piston by 1.6mm that provides better breathing performance by increasing airflow by 15%.\u003c\/p\u003e","brand":"Scubapro-Uwatec Australia Pty Ltd","offers":[{"title":"Yoke","offer_id":53726289035540,"sku":"M689555","price":327.8,"currency_code":"AUD","in_stock":true},{"title":"DIN","offer_id":53726289068308,"sku":"574139J","price":327.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_5a328609-652a-47e7-860f-5eceea086442.jpg?v=1787816697"},{"product_id":"apeks-xtx50","title":"Apeks XTX50","description":"\u003cp\u003eFirst Stage\u003c\/p\u003e\u003cp\u003e* DST first stage - no rotating turret.\u003c\/p\u003e\u003cp\u003e* Unique over-balanced, diaphragm design - as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth.\u003c\/p\u003e\u003cp\u003e* An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eSecond Stage\u003c\/p\u003e\u003cp\u003e* Pneumatically-balanced second stage results in smooth, easy breathing.\u003c\/p\u003e\u003cp\u003e* The XTX purge buttons are large and easy to operate. A 2-stage progressive purge is used - press the purge on the side for a lower flow rate, useful where more control is required such as filling lift bags etc, then press in the centre for the full effect of the purge, i.e. when regulator clearing etc.\u003c\/p\u003e\u003cp\u003e* The large venturi lever has a soft touch rubber grip, which makes it easier to locate and use. The lever reduces the amount of grit ingress and therefore resists any possible friction giving a smooth operation.\u003c\/p\u003e\u003cp\u003e* The second stage is manufactured with active protection against infection as all molded parts are produced with an additive that kills MRSA, protects against E-Coli, bacteria and fungi, and is also very effective against viruses, mould, yeast and algae.\u003c\/p\u003e\u003cp\u003e* A silicone exhaust valve improves the breathing performance of the regulator.\u003c\/p\u003e\u003cp\u003e* The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue.\u003c\/p\u003e\u003cp\u003e* A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water.\u003c\/p\u003e","brand":"Aqua Lung Australia","offers":[{"title":"Yoke","offer_id":53726289953044,"sku":"A801824","price":880.0,"currency_code":"AUD","in_stock":false},{"title":"DIN","offer_id":53726289985812,"sku":"9875222","price":880.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_06781f7d-26e2-4f22-8e3c-74cf263a051c.jpg?v=1787816722"},{"product_id":"halcyon-h-50d-first-stage-regulator","title":"Halcyon H-50D First Stage Regulator","description":"\u003cp\u003eThe Halcyon H-50D First Stage Regulator is a high-performance scuba regulator engineered for reliability in technical and demanding dive environments. Halcyon regulators are built for cold water, deep diving, and overhead environments, delivering smooth and consistent airflow at any depth. Used by GUE divers and technical divers worldwide. Serviced and sold by Dive Centre Bondi, Sydney's authorised Halcyon dealer.\u003c\/p\u003e","brand":"Halcyon Manufacturing Inc","offers":[{"title":"Default Title","offer_id":53726294999316,"sku":"2842158","price":510.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_49ac7e46-9dc4-48f5-8e9b-61b39c9fc0b8.png?v=1787816776"},{"product_id":"apeks-xtx50-nitrox-din","title":"Apeks XTX50 Nitrox DIN","description":"\u003cp\u003eApeks XTX 50 Oxygen Regulator Din is suitable for use with enriched air Nitrox up to 100% O2 and are colour-coded for easy identification.\u003c\/p\u003e\u003cp\u003eThe regulators have been specially cleaned and assembled in our purpose-built class 'J' (10,000) Clean Room using oxygen safe components and lubricants and are available in yoke ('A') clamp or DIN fitting.\u003c\/p\u003e\u003cp\u003eThe XTX50 is for the discerning diver who wants the benefits of a feature-rich regulator at a moderate price. This popular regulator has four medium-pressure ports all mounted on a rotating turret, resulting in optimal hose routing while eliminating sharp bends in the hose.\u003c\/p\u003e","brand":"Aqua Lung Australia","offers":[{"title":"Default Title","offer_id":53726305124628,"sku":"1685555","price":950.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_e2867bbf-52cf-4217-b6fb-7775db728a23.jpg?v=1787816898"},{"product_id":"scubatec-low-profile-drysuit-inflation-regulator","title":"Scubatec Low Profile Drysuit Inflation Regulator","description":"\u003cp\u003eConventional and compact Pressure Regulator 1st Stage, designed for use with compressed air where pressure reduction from a maximum of 232 Bar Cylinder pressure to a regulated outlet working pressure of approximately 8.5 Bar - m120 psi is required.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eFor use with air in non-breathing applications, such as tyre inflation, argon suit systems etc.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThe balanced design controls air regulation at various depths, providing a stable outlet pressure from a fixed turret. Complete with internal over pressure relief valve that will protect should outlet pressure exceeds 12.5-13 Bar.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eOne Low Pressure Port with a 3\/8\" X 24 UNF threaded outlet providing the regulated supply and one High Pressure Port with 7\/16\" X 20 UNF thread for attachment of a Pressure Gauge for measuring cylinder contents.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eManufactured by Beaver Sports Co with a standard male EN-144-1\/ISO 12209 type 232 Bar DIN fitting in accordance with European Standard EN250: 2014.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eMeasuring 8cm\/3 inches x 5cm\/2 inches diameter and weighs only 360 grammes.\u003c\/p\u003e\u003cp\u003eOperated by a sliding piston machined inside the nickel plated brass mono-block, which is totally sanded, polished and chromium plated.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eSupplied complete with DIN fitting cap to protect the threads on the high pressure attachment from damage and contamination.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eBeing specifically designed with a minimum number of moving parts, the Mini First Stage is quick and easy to maintain\u003c\/p\u003e","brand":"Beaver Sports (Yorks) Ltd","offers":[{"title":"Default Title","offer_id":53726321836308,"sku":"6396763","price":169.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_a740d39b-a85a-436a-ba37-a406beec1d7f.jpg?v=1787817181"},{"product_id":"scubapro-mk11-first-stage-regulator","title":"Scubapro MK11 First Stage Regulator","description":"\u003cp\u003eThe balanced diaphragm MK11, with its chrome-plated brass body specially designed to reduce size and weight, is an ideal travel companion. Its system features internal parts that are sealed from the elements.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e*\tAir-balanced diaphragm first stage design delivers constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.\u003c\/p\u003e\u003cp\u003e*\tMarine grade brass body has sealed internal parts to prevent water and pollutants from fouling the inner mechanism while enhancing cold-water performance.\u003c\/p\u003e\u003cp\u003e*\tTwo high pressure, two low pressure and two high-flow LP ports maximize hose routing options.\u003c\/p\u003e\u003cp\u003e*\tExternal intermediate pressure adjustment enables technicians to fine-tune performance quickly and easily.\u003c\/p\u003e","brand":"Scubapro-Uwatec Australia Pty Ltd","offers":[{"title":"Yoke","offer_id":53726335500564,"sku":"775472H","price":416.1,"currency_code":"AUD","in_stock":false},{"title":"DIN","offer_id":53726335533332,"sku":"322819C","price":416.1,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_d4c4f223-62a1-40a7-a9e5-77d80367dbd8.jpg?v=1787817576"},{"product_id":"scubapro-mk19-evo-first-stage-regulator","title":"Scubapro MK19 Evo First Stage Regulator","description":"\u003cp\u003eThe Scubapro MK19 Evo is a balanced environmentally sealed first stage with a dry ambient pressure chamber with 5 High Flow Low Pressure Ports (HFP) on a swiveling turret.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThis first stage regulator is Scubapro's answer to cold, harsh diving environments and is the tech diver's first stage of choice!\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eWith the 5th port on the bottom of the first stage, this regulator has many options for hose routing and is uniquely suited for sidemount and twin tank diving!\u003c\/p\u003e","brand":"Scubapro-Uwatec Australia Pty Ltd","offers":[{"title":"Yoke","offer_id":53986533572884,"sku":"850533H","price":592.7,"currency_code":"AUD","in_stock":true},{"title":"DIN","offer_id":53986533998868,"sku":"6051845","price":592.7,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_8b6ab600-bf24-4417-af97-5f4301d515fd.jpg?v=1789006519"},{"product_id":"apeks-mtx-rc-1st-stage","title":"Apeks MTX-RC 1st Stage","description":"\u003cp\u003eThe MTX-RC first stage has been designed to provide optimum cold water performance from it's satin plated brass body with heat exchanging ribs, to the innovative over-moulded first stage endcap and environmental diaphragm. It helps to prevent ice build-up that can cause free-flowing of a first stage in extreme weather circumstances. These features also protect the first stage from impact damage. The diaphragm design provides an over-balancing feature. This allows the medium pressure gas in the hose to increase at a faster rate than ambient, resulting in superior performance at depth.\u003c\/p\u003e\u003cp\u003eThe first stage has 5x medium pressure ports (4 of which are mounted on a rotating turret for improved hose orientation), and 2 angled high pressure ports. These ports allow for optimal hose routing and fitting of air pressure transmitters. It has a double swivel hose for greater freedom of movement and comfort while diving, and an easy to grip DIN hand-wheel, or over-moulded yoke hand-wheel which require only one hand to release. Tested for Octopus use - EN250A to 60 metres cold water.\u003c\/p\u003e","brand":"Aqua Lung Australia","offers":[{"title":"Default Title","offer_id":53986540224788,"sku":"607331M","price":900.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_2fc0335c-8ea0-455e-8d62-16525fdfb1c7.png?v=1789006558"},{"product_id":"scubapro-mk17-evo-first-stage-regulator","title":"Scubapro MK17 Evo First Stage Regulator","description":"\u003cp\u003eThe MK17 EVO is completely sealed off from the elements, ensuring trouble-free operation no matter how cold or murky the water gets. It is more compact than its predecessor, yet delivers better breathing performance. Its improved internal design allows more airflow from the LP ports which have been reconfigured for better hose routing.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e*\tAir balanced diaphragm first stage, with its chrome-plated brass body, delivers constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.\u003c\/p\u003e\u003cp\u003e*\tEnvironmentally sealed system prevents water and pollutants from fouling the inner mechanism.\u003c\/p\u003e\u003cp\u003e*\tDry ambient pressure chamber increases freezing resistance, ensuring consistent airflow in the coldest conditions.\u003c\/p\u003e\u003cp\u003e*\tSubstantial increase in airflow (6900 l\/min versus 6500 l\/min) includes improved balance of air supply pressure.\u003c\/p\u003e\u003cp\u003e*\tTwo high pressure and four high-flow ports maximize air delivery. High-flow performance is available from all four LP ports which are configured for optimum hose routing.\u003c\/p\u003e","brand":"Scubapro-Uwatec Australia Pty Ltd","offers":[{"title":"Yoke","offer_id":53986563784980,"sku":"A327206","price":518.92,"currency_code":"AUD","in_stock":false},{"title":"DIN","offer_id":53986562965780,"sku":"P421330","price":518.92,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/files\/original_6b5ddc41-4bdd-47db-ba1f-332bbbb205e3.jpg?v=1789006685"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1028\/1032\/1172\/collections\/Reguators-Lifestyle_5_112f4218-f63f-4db8-ab8f-a67e2abfc192.png?v=1787815557","url":"https:\/\/divebondi.com.au\/collections\/first-stages.oembed","provider":"Dive Centre Bondi","version":"1.0","type":"link"}