{"product_id":"bioscape-heavy-duty-pond-air-pump-8400lph-with-33-outlets","title":"Bioscape Heavy Duty Pond Air Pump 8400lph with 33 Outlets","description":"\u003cp\u003e\u003cstrong\u003eThe step-up pump for bigger ponds and busy manifolds.\u003c\/strong\u003e The Bioscape Heavy Duty Pond Air Pump (BIS651) is a 100W dual-diaphragm air pump rated at 140 L\/min (8,400 L\/h), feeding a 33-outlet manifold so you can aerate a pond up to roughly 16,800 litres, or spread air across dozens of stones and diffusers, from a single unit. It's the pump to reach for once a 14-outlet pump would be running flat out.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e140 L\/min air output\u003c\/strong\u003e — rated 8,400 L\/h, double the BIS650's output, for ponds up to approximately 16,800 litres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e33-outlet manifold\u003c\/strong\u003e — enough outlets to run a large pond's worth of airstones and diffusers, or aerate several holding tanks, from one pump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-chamber, oil-free diaphragm design\u003c\/strong\u003e — no oil in the airline, and two chambers smooth the pulse compared with a single-diaphragm pump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual air filtration\u003c\/strong\u003e — filters intake air before the diaphragms, which matters more at this duty cycle than it does on a smaller pump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManifold, clamps and adapter included\u003c\/strong\u003e — the 33-outlet manifold, stainless steel\/spring hose clamps and manifold adapter are in the box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eBIS651\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir output\u003c\/th\u003e\n\u003ctd\u003e140 L\/min (8,400 L\/h)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutlets\u003c\/th\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated for ponds up to\u003c\/th\u003e\n\u003ctd\u003e~16,800 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e100W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking pressure\u003c\/th\u003e\n\u003ctd\u003e0.042 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e220–240V \/ 50Hz, AU plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCable length\u003c\/th\u003e\n\u003ctd\u003e1.8m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e283 x 200 x 227mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDesign\u003c\/th\u003e\n\u003ctd\u003eDual-chamber, oil-free diaphragm, dual air filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAs with the smaller BIS650, Bioscape doesn't publish a quantitative air-output-vs-depth chart, unit weight, dB noise figure or a stated AU warranty term for this pump.\u003c\/p\u003e\n\u003ch3\u003eWhich Bioscape pond air pump do I need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eBIS650 – 4,200 L\/h\u003c\/th\u003e\n\u003cth\u003eBIS651 – 8,400 L\/h\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir output\u003c\/th\u003e\n\u003ctd\u003e70 L\/min (4,200 L\/h)\u003c\/td\u003e\n\u003ctd\u003e140 L\/min (8,400 L\/h)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutlets\u003c\/th\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated for ponds up to\u003c\/th\u003e\n\u003ctd\u003e~8,400 L\u003c\/td\u003e\n\u003ctd\u003e~16,800 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e50W\u003c\/td\u003e\n\u003ctd\u003e100W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003ctd\u003eSmall to mid-size ponds, or a handful of aeration points\u003c\/td\u003e\n\u003ctd\u003eLarger ponds, or many airstones\/diffusers spread across a big system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe BIS650 and BIS651 share the same build and the same 1.8m cord — the difference is scale. If your outlet count is climbing past what a 14-outlet manifold can comfortably feed, or your pond is pushing past roughly 8,000 litres, the BIS651's extra 50W and 19 extra outlets give you the headroom without running a second pump.\u003c\/p\u003e\n\u003ch3\u003ePerformance\u003c\/h3\u003e\n\u003cp\u003eAs with any air pump, output falls as back-pressure rises — depth, airline length and the number of outlets actually in use all add resistance the diaphragms have to push against. Bioscape's guidance for this range is to use wide-bore airline, keep stones clean, and keep diffusers at shallow-to-medium depths of around 4–5 metres or less; deeper placement will noticeably reduce delivered air below the 8,400 L\/h rated figure. No quantitative output-by-depth table is published for this model, so treat 8,400 L\/h as the pump's rated free-air output rather than a guaranteed per-outlet delivery once all 33 outlets are in use — spreading a heavy load across fewer, larger stones will generally outperform running every outlet at once.\u003c\/p\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBioscape Heavy Duty Pond Air Pump (BIS651)\u003c\/li\u003e\n\u003cli\u003e33-outlet manifold\u003c\/li\u003e\n\u003cli\u003eStainless steel \/ spring hose clamps\u003c\/li\u003e\n\u003cli\u003eManifold adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAirline tubing, air stones\/diffusers and check valves are sold separately.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e larger outdoor ponds up to roughly 16,800 litres, multi-tank aquaculture or holding setups, and any system where a 14-outlet pump would be maxed out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e submersion — it's a surface-mounted unit — or small ponds and single-airstone setups, where the smaller BIS650 does the job for less outlay and less running cost.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cp\u003eRated 220–240V \/ 50Hz with an AU plug. Site it above the waterline in a dry, ventilated position — this is a surface air pump, not a submersible one — and keep it protected from flooding in heavy rain, particularly given the larger 100W draw.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered against manufacturing defects on arrival, in addition to your rights under Australian Consumer Law. Bioscape's AU site doesn't publish a specific warranty term for this model — contact us to confirm before ordering. Standard parcel delivery applies.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eWhat's the difference between this and the BIS650?\u003c\/h4\u003e\n\u003cp\u003eOutput and outlet count. The BIS651 delivers 8,400 L\/h through 33 outlets at 100W; the BIS650 delivers 4,200 L\/h through 14 outlets at 50W. Both share the same dual-chamber, oil-free design.\u003c\/p\u003e\n\u003ch4\u003eCan I run fewer than 33 airstones off it?\u003c\/h4\u003e\n\u003cp\u003eYes — you don't need to use every outlet. Running a partial load generally gives stronger flow per stone than loading all 33 at once.\u003c\/p\u003e\n\u003ch4\u003eIs it submersible?\u003c\/h4\u003e\n\u003cp\u003eNo. Mount it above the waterline in a dry, ventilated spot and run airline down to your diffusers.\u003c\/p\u003e\n\u003ch4\u003eWhat size pond is this rated for?\u003c\/h4\u003e\n\u003cp\u003eApproximately 16,800 litres, per Bioscape's specification.\u003c\/p\u003e\n\u003ch4\u003eDoes it come with air stones or airline?\u003c\/h4\u003e\n\u003cp\u003eNo — the 33-outlet manifold, hose clamps and manifold adapter are included; airline tubing and diffusers are sold separately.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293069230371,"sku":"BIS651","price":458.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/BIS651_5.jpg?v=1782870997","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/bioscape-heavy-duty-pond-air-pump-8400lph-with-33-outlets","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}