{"product_id":"octo-regal-300ext-recirculating-protein-skimmer","title":"Octo Regal 300EXT Recirculating Protein Skimmer","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"safari-katex-mathml markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eProfessional External Protein Skimming for Large Reef Aquariums\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eOcto Regal 300EXT Recirculating Protein Skimmer\u003c\/strong\u003e is engineered for advanced reef aquariums where maximum nutrient export, precise control, and exceptional performance are essential. Designed for \u003cstrong\u003eexternal installation\u003c\/strong\u003e, the Regal 300EXT is ideal for large reef systems, custom filtration rooms, and dedicated fish rooms, delivering powerful protein skimming for aquariums up to \u003cstrong\u003e700 gallons\u003c\/strong\u003e. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt the heart of the Regal 300EXT is the \u003cstrong\u003eVarioS-6S controllable DC recirculating pump\u003c\/strong\u003e, providing adjustable performance through five power levels while maintaining whisper-quiet operation and excellent energy efficiency. The hybrid conical reaction chamber naturally stabilizes foam production, maximizing contact time between air and water to remove dissolved organic compounds before they become nitrate and phosphate. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eUnlike traditional in-sump skimmers, the Regal 300EXT is designed as an \u003cstrong\u003eexternal recirculating skimmer\u003c\/strong\u003e, allowing for greater installation flexibility and improved control over water flow. Simply pair it with a dedicated feed pump, and you'll have one of Reef Octopus' most capable commercial-grade filtration systems.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eFeatures\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eExternal recirculating protein skimmer\u003c\/li\u003e\n\u003cli\u003eRated for aquariums up to \u003cstrong\u003e700 gallons\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePremium hybrid conical reaction chamber\u003c\/li\u003e\n\u003cli\u003eHigh-performance \u003cstrong\u003eVarioS-6S Controllable DC Pump\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFive adjustable speed settings\u003c\/li\u003e\n\u003cli\u003eEnergy-efficient 36V DC operation\u003c\/li\u003e\n\u003cli\u003eSoft-start technology extends pump life\u003c\/li\u003e\n\u003cli\u003eQuiet operation with oversized air silencer\u003c\/li\u003e\n\u003cli\u003eFully disassembles for easy maintenance\u003c\/li\u003e\n\u003cli\u003ePrecision gate valve adjustment\u003c\/li\u003e\n\u003cli\u003eHeavy-duty cast acrylic construction\u003c\/li\u003e\n\u003cli\u003eController compatible through 0–10V input\u003c\/li\u003e\n\u003cli\u003eProfessional-grade filtration for large reef systems \u003cspan class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eRecommended Aquarium Size\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Bioload:\u003c\/strong\u003e Up to 700 Gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium Bioload:\u003c\/strong\u003e Up to 600 Gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Bioload:\u003c\/strong\u003e Up to 500 Gallons \u003cspan class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eSpecifications\u003c\/h1\u003e\n\u003ch3\u003eSkimmer\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFootprint: \u003cstrong\u003e20\" × 17.5\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBody Diameter: \u003cstrong\u003e12\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNeck Diameter: \u003cstrong\u003e7\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHeight: \u003cstrong\u003e25.6\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput Size: \u003cstrong\u003e1.5\" (50mm)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput Height: \u003cstrong\u003e9.56\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePump\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReef Octopus \u003cstrong\u003eVarioS-6S DC Recirculating Pump\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable Power Consumption: \u003cstrong\u003e35–70 Watts\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eVoltage: \u003cstrong\u003e36V DC\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaximum Water Draw: \u003cstrong\u003e740 GPH\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAir Draw: \u003cstrong\u003e1,200–2,000 LPH\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFive controllable speed settings\u003c\/li\u003e\n\u003cli\u003eWaterproof controller connection\u003c\/li\u003e\n\u003cli\u003eSoft-start technology\u003c\/li\u003e\n\u003cli\u003eRotating pump volute for flexible plumbing \u003cspan class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eImportant Installation Information\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eOcto Regal 300EXT\u003c\/strong\u003e is an \u003cstrong\u003eexternal recirculating skimmer\u003c\/strong\u003e and \u003cstrong\u003erequires a separate feed pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Feed Pump Flow:\u003c\/strong\u003e \u003cstrong\u003e1,200–1,600 GPH\u003c\/strong\u003e (approximately 1.5–2x total system volume). \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eWhy Choose the Octo Regal 300EXT?\u003c\/h1\u003e\n\u003cp\u003eDesigned for serious reef keepers, the Regal 300EXT delivers commercial-level protein skimming performance while providing the flexibility of an external recirculating design. The controllable DC pump allows precise tuning for changing bioloads, while the hybrid cone body creates an incredibly stable foam head for maximum organic waste removal.\u003c\/p\u003e\n\u003cp\u003eWhether you're maintaining a large SPS reef, a heavily stocked fish-only system, or a custom-built aquarium, the Regal 300EXT provides the power and reliability needed to maintain pristine water quality.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1\u003eWhat's Included\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eOcto Regal 300EXT Protein Skimmer\u003c\/li\u003e\n\u003cli\u003eVarioS-6S DC Recirculating Pump\u003c\/li\u003e\n\u003cli\u003eDigital Pump Controller\u003c\/li\u003e\n\u003cli\u003eCollection Cup\u003c\/li\u003e\n\u003cli\u003eAir Silencer\u003c\/li\u003e\n\u003cli\u003ePower Supply\u003c\/li\u003e\n\u003cli\u003ePlumbing Connections\u003c\/li\u003e\n\u003cli\u003eUser Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eShipping Information\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eLarge Shipping – $45.99 Flat Rate\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDue to the size and weight of this protein skimmer, it ships using our \u003cstrong\u003eLarge Shipping\u003c\/strong\u003e service.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Shipping:\u003c\/strong\u003e $45.99 flat rate\u003c\/li\u003e\n\u003cli\u003eProcessing Time: \u003cstrong\u003e1–3 Business Days\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eEstimated Delivery: \u003cstrong\u003e5–8 Business Days\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCarefully packaged to protect all acrylic components during transit\u003c\/li\u003e\n\u003cli\u003eTracking information will be emailed once your order ships\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eWhy Shop with Infinity and Beyond Aquatics?\u003c\/h1\u003e\n\u003cp\u003eAt \u003cstrong\u003eInfinity and Beyond Aquatics\u003c\/strong\u003e, we're hobbyists first and aquarium retailers second. We carefully select premium equipment from trusted manufacturers so you can build your reef with confidence.\u003c\/p\u003e\n\u003cp\u003eWhen you shop with us, you'll enjoy:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAuthorized dealer for leading aquarium brands\u003c\/li\u003e\n\u003cli\u003eCompetitive pricing on premium reef equipment\u003c\/li\u003e\n\u003cli\u003eFast, reliable order processing\u003c\/li\u003e\n\u003cli\u003eSecure packaging to protect your investment\u003c\/li\u003e\n\u003cli\u003eFriendly customer support from experienced aquarists\u003c\/li\u003e\n\u003cli\u003eA growing selection of freshwater, saltwater, and reef aquarium products\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhether you're upgrading an established reef or building your dream aquarium from the ground up, we're committed to providing quality products, dependable service, and expert support every step of the way.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden has-[\u0026gt;_:empty]:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"coral vue","offers":[{"title":"Default Title","offer_id":53256208908597,"sku":"Octo-Regal-300Ext","price":1536.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/2252\/7285\/files\/REGAL-300EXT_OctoRegal300EXTRecirculatingProteinSkimmer.jpg?v=1786044191","url":"https:\/\/infinityandbeyondaquatics.com\/products\/octo-regal-300ext-recirculating-protein-skimmer","provider":"Infinity and Beyond Aquatics ","version":"1.0","type":"link"}