{"product_id":"red-sea-reefrun-g2-4000-dc-pump","title":"Red Sea ReefRun G2 4000 Controllable DC Pump","description":"\u003cp\u003eThe Red Sea ReefRun G2 4000 is a controllable DC return pump built for precise, whisper-quiet flow in reef systems. Its adjustable 530–1060 GPH output covers small-to-medium returns, and low power draw (16–38W) keeps energy costs down without sacrificing push.\u003c\/p\u003e\n\u003cp\u003ePairs with the Red Sea ReefRun controller (sold separately) for multi-mode control via the ReefBeat app — Constant Flow, Feed, Wave, and Custom patterns. Built to last with a ceramic shaft and clean-running motor design.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAvailable for pickup at our Layton showroom or shipped nationwide.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVariable DC return pump — 530 to 1060 GPH\u003c\/li\u003e\n\u003cli\u003eEnergy-efficient: only 16–38W\u003c\/li\u003e\n\u003cli\u003eMax head height of 11.2 ft\u003c\/li\u003e\n\u003cli\u003eWorks with ReefRun Single or Dual DC Controller (sold separately)\u003c\/li\u003e\n\u003cli\u003eMulti-mode operation via ReefBeat app when paired with controller\u003c\/li\u003e\n\u003cli\u003eQuiet ceramic-shaft motor\u003c\/li\u003e\n\u003cli\u003e10 ft power cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eControllable DC Return Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlow Rate\u003c\/th\u003e\n\u003ctd\u003e530 – 1060 GPH (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Draw\u003c\/th\u003e\n\u003ctd\u003e16 – 38W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Head Height\u003c\/th\u003e\n\u003ctd\u003e11.2 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e6.9\"L x 4.3\"W x 5.1\"H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable Length\u003c\/th\u003e\n\u003ctd\u003e10 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eController\u003c\/th\u003e\n\u003ctd\u003eSold separately (ReefRun Single or Dual)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eRed Sea\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with a controller?\u003c\/strong\u003e\u003cbr\u003eNo — this listing is the pump only. You'll need a ReefRun Single or Dual DC Controller to run it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat tank size is this good for?\u003c\/strong\u003e\u003cbr\u003eIt's a strong match for reef tanks in the ~50–90 gallon range as a return pump, depending on head height and plumbing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it quiet?\u003c\/strong\u003e\u003cbr\u003eYes — the ceramic-shaft DC design runs near-silent in a sump.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this with an older ReefRun controller?\u003c\/strong\u003e\u003cbr\u003eYes — G2 pumps are compatible with existing ReefRun DC controllers.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSee more reef equipment at \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/equipment\"\u003esqueakysaquatics.com\/collections\/equipment\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e","brand":"Red Sea","offers":[{"title":"Default Title","offer_id":48071662665947,"sku":"R35710USA","price":195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/0000_reefrun_g2_4000.webp?v=1766320755","url":"https:\/\/squeakysaquatics.com\/products\/red-sea-reefrun-g2-4000-dc-pump","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}