{"product_id":"fluval-u-series-underwater-filter","title":"Fluval U Series Underwater Filter","description":"\u003cp dir=\"auto\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong\u003eFluval U Series Underwater Filters\u003c\/strong\u003e provide compact, fully submersible filtration with strong water circulation and flexible installation options. Available in four sizes from \u003cstrong\u003e250LPH to 1000LPH\u003c\/strong\u003e, the range covers everything from small aquariums through to tanks up to \u003cstrong\u003e240L\u003c\/strong\u003e.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe U Series can be installed \u003cstrong\u003evertically against the aquarium wall\u003c\/strong\u003e or \u003cstrong\u003ehorizontally in shallow setups\u003c\/strong\u003e, making them a versatile option where an external canister filter may not be practical. The U2, U3 and U4 provide multi-stage mechanical, chemical and biological filtration, while the compact U1 uses a simpler foam-based filtration system.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eSuitable for \u003cstrong\u003eboth freshwater and saltwater aquariums\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eModels \u0026amp; Specifications\u003c\/h3\u003e\n\u003cdiv dir=\"auto\" class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable dir=\"auto\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eModel\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eFlow Rate\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eRecommended Tank Size\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003ePower\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDimensions\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eIncluded Filter Media\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eU1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e250LPH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUp to 55L\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5W\u003c\/td\u003e\n\u003ctd\u003e10 × 8 × 15cm\u003c\/td\u003e\n\u003ctd\u003e1 × Foam Filter Pad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eU2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e400LPH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e45–110L\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5W\u003c\/td\u003e\n\u003ctd\u003e20 × 9 × 10cm\u003c\/td\u003e\n\u003ctd\u003e2 × Foam Pads, 2 × Poly\/Carbon Cartridges, BIOMAX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eU3\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e600LPH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e90–150L\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.5W\u003c\/td\u003e\n\u003ctd\u003e26.7 × 8.3 × 10cm\u003c\/td\u003e\n\u003ctd\u003e2 × Foam Pads, 2 × Poly\/Carbon Cartridges, BIOMAX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eU4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1000LPH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e130–240L\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10W\u003c\/td\u003e\n\u003ctd\u003e33 × 10 × 11cm\u003c\/td\u003e\n\u003ctd\u003e2 × Foam Pads, 2 × Poly\/Carbon Cartridges, BIOMAX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 dir=\"auto\"\u003e\u003c\/h3\u003e\n\u003ch3 dir=\"auto\"\u003eKey Features\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003e✔ Fully submersible internal aquarium filter\u003cbr\u003e✔ Available in \u003cstrong\u003e250, 400, 600 and 1000LPH\u003c\/strong\u003e models\u003cbr\u003e✔ Suitable for \u003cstrong\u003efreshwater and saltwater aquariums\u003c\/strong\u003e\u003cbr\u003e✔ Can be mounted vertically or horizontally\u003cbr\u003e✔ Compact design keeps filtration contained inside the aquarium\u003cbr\u003e✔ Helps provide water circulation and surface movement\u003cbr\u003e✔ Easy-access design simplifies routine filter maintenance\u003cbr\u003e✔ Adjustable flow allows circulation to be matched to your aquarium\u003cbr\u003e✔ Can be used as the main filter in appropriately sized aquariums\u003cbr\u003e✔ Also suitable as additional filtration or circulation in larger setups\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eThree-Way Flow Control – U2, U3 \u0026amp; U4\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe U2, U3 and U4 allow you to choose between three different water outlet options depending on the circulation required:\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e✔ \u003cstrong\u003eTop Output\u003c\/strong\u003e – provides strong circulation and increased surface movement\u003cbr\u003e✔ \u003cstrong\u003eIntegrated Spray Bar\u003c\/strong\u003e – creates a gentler, more evenly distributed water flow\u003cbr\u003e✔ \u003cstrong\u003eBottom Output\u003c\/strong\u003e – directs circulation deeper into the aquarium\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis gives you greater control over water movement depending on your fish, plants and aquarium layout.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eFiltration – U2, U3 \u0026amp; U4\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eMechanical Filtration\u003c\/strong\u003e\u003cbr\u003eFoam pads trap larger particles, fish waste and suspended debris from the aquarium water.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eChemical Filtration\u003c\/strong\u003e\u003cbr\u003ePoly\/Carbon cartridges help remove finer particles, odours and discolouration.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eBiological Filtration\u003c\/strong\u003e\u003cbr\u003eBIOMAX provides a porous surface for beneficial bacteria, helping support the aquarium's biological filtration.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eU1 Filtration\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe compact \u003cstrong\u003eU1\u003c\/strong\u003e uses a simpler foam filtration system rather than the multi-stage media arrangement found in the U2, U3 and U4.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eIts foam pad captures suspended debris while also providing surface area for beneficial bacteria to colonise, making it a simple and effective option for smaller aquariums.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003ePerfect For\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003e✔ Freshwater aquariums\u003cbr\u003e✔ Saltwater aquariums\u003cbr\u003e✔ Tropical community tanks\u003cbr\u003e✔ Planted aquariums\u003cbr\u003e✔ Small through to medium-large aquarium setups\u003cbr\u003e✔ Aquariums where an external canister filter isn't practical\u003cbr\u003e✔ Adding additional filtration to an existing aquarium\u003cbr\u003e✔ Increasing water circulation and surface movement\u003cbr\u003e✔ Shallow aquariums requiring horizontal filter installation\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eChoosing the Right Size\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eFor best results, choose the model based on your aquarium volume, stocking level and the amount of waste produced by your fish. Heavily stocked aquariums or tanks containing larger fish may benefit from selecting the next filter size up.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFlow rates listed are the manufacturer's nominal pump output.\u003c\/strong\u003e Actual flow can reduce as filter media collects debris, so regular maintenance is important for maintaining good circulation and filtration performance.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Fluval U1","offer_id":50514796970061,"sku":null,"price":89.99,"currency_code":"NZD","in_stock":true},{"title":"Fluval U2","offer_id":50514797002829,"sku":null,"price":108.99,"currency_code":"NZD","in_stock":true},{"title":"Fluval U3","offer_id":50514797035597,"sku":null,"price":152.99,"currency_code":"NZD","in_stock":true},{"title":"Fluval U4","offer_id":50514797068365,"sku":null,"price":212.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0571\/2180\/0269\/files\/A465.png?v=1790052359","url":"https:\/\/simplyfish.co.nz\/products\/fluval-u-series-underwater-filter","provider":"Simply Fish","version":"1.0","type":"link"}