{"product_id":"regal-300ext","title":"Octo Regal 300EXT Recirculating Protein Skimmer","description":"\u003ch2 data-oe-version=\"1.2\"\u003eReef Octopus Regal 300-EXT Recirculating Protein Skimmer\u003c\/h2\u003e\u003cp\u003eThe Reef Octopus \u003cb\u003eRegal 300-EXT\u003c\/b\u003e is the flagship external recirculating protein skimmer, designed for the most demanding residential reef systems and commercial displays up to 740 gallons. Boasting a massive 12-inch wine-glass body, this skimmer utilizes a recirculating design where the \u003cb\u003eVarioS-6S DC pump\u003c\/b\u003e focuses entirely on air-water mixing within the reaction chamber. By using a separate feed pump (sold separately) to control the flow-through rate, the user can achieve absolute precision in dwell time—ensuring that organics are fully processed before water returns to the system.\u003c\/p\u003e\u003cp\u003eBuilt with industrial-grade cast acrylic, the Regal 300-EXT is designed for high-capacity performance and longevity. The controllable DC technology allows for digital fine-tuning of the air intake, while the integrated safety float switch provides essential protection for external installations by preventing cup overflows. With a heavy-duty geared gate valve for water level adjustment and a design that optimizes foam concentration, the Regal 300-EXT provides commercial-level nutrient export for large-scale marine environments.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eIndependent Feed Control:\u003c\/b\u003e Dictate the dwell time by selecting a feed rate that matches your specific bioload and filtration goals.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eVarioS-6S Controllable Pump:\u003c\/b\u003e High-efficiency DC motor with a ceramic shaft and 5 speed presets for silent, reliable operation.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eExternal Safety Guard:\u003c\/b\u003e Controller-linked float switch prevents messy overflows—a must-have for out-of-sump filtration.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003e12-Inch Wine-Glass Design:\u003c\/b\u003e Maximizes reaction volume while naturally stabilizing the foam column as it enters the neck.\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003ePrecision Geared Valve:\u003c\/b\u003e Provides significantly more control than standard wedge pipes for \"dialing in\" the perfect water level.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBioload Handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eHeavy Bioload:\u003c\/b\u003e 400 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eMedium Bioload:\u003c\/b\u003e 600 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cb\u003eLight Bioload:\u003c\/b\u003e 740 Gallons\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CoralVue","offers":[{"title":"Default Title","offer_id":47322762248361,"sku":"REGAL-300EXT","price":1536.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/4958\/0912\/files\/1ab7df0e4046751e89b50ec44a31baa0.jpg?v=1786228196","url":"https:\/\/worldwidecorals.com\/products\/regal-300ext","provider":"World Wide Corals","version":"1.0","type":"link"}