{"product_id":"ocean-reef-neptune-iii-system","title":"Ocean Reef Neptune III System","description":"\u003ch2\u003eOCEAN REEF NEPTUNE III System\u003c\/h2\u003e\n\u003cp\u003eNEPTUNE III + is the ultimate full-face mask for divers who want an unparalleled underwater experience. With enhanced visibility and communication capabilities, this product is suitable for any qualified diver.\u003c\/p\u003e\n\u003cp\u003eThe Ocean Reef Neptune III System consists of:-\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNEPTUNE III Integrated Diving Mask\u003c\/li\u003e\n\u003cli\u003e30 Features Backpack\u003c\/li\u003e\n\u003cli\u003eSL35TX DIN or YOKE 1st stage regulator w\/ Standard Hose\u003c\/li\u003e\n\u003cli\u003eQRS (Quick Removal System)\u003c\/li\u003e\n\u003cli\u003eExtender Frame Accessories\u003c\/li\u003e\n\u003cli\u003eMultitool\u003c\/li\u003e\n\u003cli\u003eStickers to show off you’re an OCEAN REEF addicted.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to measure?\u003c\/h3\u003e\n\u003cp data-start=\"0\" data-end=\"214\" class=\"\"\u003eTo measure for size on the \u003cstrong data-start=\"27\" data-end=\"53\"\u003eOcean Reef Neptune III\u003c\/strong\u003e full-face mask, you'll want to take a \u003cstrong data-start=\"92\" data-end=\"119\"\u003eface length measurement\u003c\/strong\u003e—this helps determine whether you need a \u003cstrong data-start=\"160\" data-end=\"182\"\u003eSmall\/Medium (S\/M)\u003c\/strong\u003e or \u003cstrong data-start=\"186\" data-end=\"208\"\u003eMedium\/Large (M\/L)\u003c\/strong\u003e size.\u003c\/p\u003e\n\u003cp data-start=\"216\" data-end=\"236\" class=\"\"\u003eHere’s how to do it:\u003c\/p\u003e\n\u003chr data-start=\"238\" data-end=\"241\" class=\"\"\u003e\n\u003ch3 data-start=\"243\" data-end=\"301\" class=\"\"\u003e✅ \u003cstrong data-start=\"249\" data-end=\"301\"\u003eStep-by-Step: Measuring for the Neptune III Mask\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003col data-start=\"303\" data-end=\"614\"\u003e\n\u003cli data-start=\"303\" data-end=\"358\" class=\"\"\u003e\n\u003cp data-start=\"306\" data-end=\"358\" class=\"\"\u003e\u003cstrong data-start=\"306\" data-end=\"336\"\u003eStand in front of a mirror\u003c\/strong\u003e or have someone help.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"359\" data-end=\"557\" class=\"\"\u003e\n\u003cp data-start=\"362\" data-end=\"402\" class=\"\"\u003eUsing a flexible tape measure or string:\u003c\/p\u003e\n\u003cul data-start=\"406\" data-end=\"557\"\u003e\n\u003cli data-start=\"406\" data-end=\"501\" class=\"\"\u003e\n\u003cp data-start=\"408\" data-end=\"501\" class=\"\"\u003eMeasure \u003cstrong data-start=\"416\" data-end=\"475\"\u003efrom the bottom of your chin to the bridge of your nose\u003c\/strong\u003e (just between your eyes).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"505\" data-end=\"557\" class=\"\"\u003e\n\u003cp data-start=\"507\" data-end=\"557\" class=\"\"\u003eKeep the tape \u003cstrong data-start=\"521\" data-end=\"543\"\u003evertical and tight\u003c\/strong\u003e to your face.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"559\" data-end=\"614\" class=\"\"\u003e\n\u003cp data-start=\"562\" data-end=\"614\" class=\"\"\u003eCompare your measurement to Ocean Reef's size guide:\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv class=\"_tableContainer_16hzy_1\"\u003e\n\u003cdiv class=\"_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"616\" data-end=\"777\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"616\" data-end=\"655\"\u003e\n\u003ctr data-start=\"616\" data-end=\"655\"\u003e\n\u003cth data-start=\"616\" data-end=\"635\" data-col-size=\"sm\"\u003eMeasurement (cm)\u003c\/th\u003e\n\u003cth data-start=\"635\" data-end=\"655\" data-col-size=\"sm\"\u003eRecommended Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"696\" data-end=\"777\"\u003e\n\u003ctr data-start=\"696\" data-end=\"736\"\u003e\n\u003ctd data-start=\"696\" data-end=\"716\" data-col-size=\"sm\"\u003e10 – 11.5 cm\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"716\" data-end=\"736\"\u003eS\/M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"737\" data-end=\"777\"\u003e\n\u003ctd data-start=\"737\" data-end=\"757\" data-col-size=\"sm\"\u003e11.5 – 13 cm\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"757\" data-end=\"777\"\u003eM\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cblockquote data-start=\"779\" data-end=\"981\"\u003e\n\u003cp data-start=\"781\" data-end=\"981\" class=\"\"\u003eIf your measurement is \u003cstrong data-start=\"804\" data-end=\"844\"\u003eright on the border (around 11.5 cm)\u003c\/strong\u003e and your face is narrower or you are on the smaller side overall, consider going with \u003cstrong data-start=\"931\" data-end=\"938\"\u003eS\/M\u003c\/strong\u003e. If your face is broader, go with \u003cstrong data-start=\"973\" data-end=\"980\"\u003eM\/L\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr data-start=\"983\" data-end=\"986\" class=\"\"\u003e\n\u003ch3 data-start=\"988\" data-end=\"1015\" class=\"\"\u003e🔧 Additional Fit Tips:\u003c\/h3\u003e\n\u003cul data-start=\"1016\" data-end=\"1266\"\u003e\n\u003cli data-start=\"1016\" data-end=\"1098\" class=\"\"\u003e\n\u003cp data-start=\"1018\" data-end=\"1098\" class=\"\"\u003eA \u003cstrong data-start=\"1020\" data-end=\"1035\"\u003eproper seal\u003c\/strong\u003e is essential. If you’re between sizes, try one on if possible.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1099\" data-end=\"1266\" class=\"\"\u003e\n\u003cp data-start=\"1101\" data-end=\"1266\" class=\"\"\u003eThe Neptune III has \u003cstrong data-start=\"1121\" data-end=\"1144\"\u003eimproved ergonomics\u003c\/strong\u003e and a better field of view than previous models, so even long-time Ocean Reef users should recheck sizing when upgrading.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot quite what you are looking for then have a look at the full range of \u003ca title=\"Ocean Reef products at Dive Rutland\" href=\"\/collections\/ocean-reef\"\u003eOcean Reef\u003c\/a\u003e\u003ca href=\"\/collections\/ammonite-system\" title=\"Ammonite Products at Dive Rutland\"\u003e \u003c\/a\u003e products\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis item will allow you to purchase when we are out of stock. On purchase we will order directly for Ocean Reef, delivery subject to customs will be 7 - 10 days. \"Special Product \/ Order\"\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch6\u003eLast Updated: March 2026\u003c\/h6\u003e","brand":"Ocean Reef","offers":[{"title":"INT \/ Black \/ S\/M","offer_id":45360426483970,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"INT \/ Black \/ M\/L","offer_id":45360426516738,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"INT \/ Blue \/ S\/M","offer_id":45360426549506,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"INT \/ Blue \/ M\/L","offer_id":45360426582274,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"INT \/ White \/ S\/M","offer_id":45360426615042,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"INT \/ White \/ M\/L","offer_id":45360426680578,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"DIN \/ Black \/ S\/M","offer_id":57450569728374,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"DIN \/ Black \/ M\/L","offer_id":57450569761142,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"DIN \/ Blue \/ S\/M","offer_id":57450569793910,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"DIN \/ Blue \/ M\/L","offer_id":57450569826678,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"DIN \/ White \/ S\/M","offer_id":57450569859446,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true},{"title":"DIN \/ White \/ M\/L","offer_id":57450569892214,"sku":null,"price":1134.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/9099\/3922\/files\/OceanReef_Neptune_III_System.png?v=1773256744","url":"https:\/\/diverutland.com\/products\/ocean-reef-neptune-iii-system","provider":"Dive Rutland","version":"1.0","type":"link"}