{"product_id":"fluval-07-impeller-cover-307-407","title":"Fluval 07 Impeller Cover 307\/407","description":"\u003cp\u003e\u003cstrong\u003eThe plate that keeps the impeller where it belongs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is the genuine Fluval impeller cover, part A20148, for the 307 and 407 canister filters. It is the moulded plate that closes the impeller well in the motor head and holds the magnetic impeller square on its ceramic shaft. Fluval lists it against model codes A446 and A449 only, so it is a two-model part rather than a range-wide one.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Fluval A20148\u003c\/strong\u003e — moulded to the 307 and 407 impeller well, so it seats flush and the motor head closes without forcing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStops the rattle\u003c\/strong\u003e — a cracked or distorted cover lets the impeller walk sideways in its well. That knock is the noise most owners mistake for a failing motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarries the top of the ceramic shaft\u003c\/strong\u003e — the shaft is only supported at both ends. With a loose cover it chatters, and a chattered shaft eventually snaps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComes off by hand\u003c\/strong\u003e — no tools, and it is already exposed at every impeller clean, so fitting adds nothing to a routine service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer part number\u003c\/th\u003e\n\u003ctd\u003eA20148\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSold as\u003c\/th\u003e\n\u003ctd\u003eSingle cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePosition in filter\u003c\/th\u003e\n\u003ctd\u003eOver the impeller well, inside the motor head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits filter model codes\u003c\/th\u003e\n\u003ctd\u003eA446 (307), A449 (407)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTools required\u003c\/th\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWill it fit my filter?\u003c\/h3\u003e\n\u003cp\u003eThe 07 Series does not share one impeller cover. The two large-body canisters share A20148; the two small-body canisters each have their own part.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFilter\u003c\/th\u003e\n\u003cth\u003eModel code\u003c\/th\u003e\n\u003cth\u003eCover part\u003c\/th\u003e\n\u003cth\u003eTakes A20148\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFluval 107\u003c\/td\u003e\n\u003ctd\u003eA440\u003c\/td\u003e\n\u003ctd\u003eA20113\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFluval 207\u003c\/td\u003e\n\u003ctd\u003eA443\u003c\/td\u003e\n\u003ctd\u003eA20133\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFluval 307\u003c\/td\u003e\n\u003ctd\u003eA446\u003c\/td\u003e\n\u003ctd\u003eA20148\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFluval 407\u003c\/td\u003e\n\u003ctd\u003eA449\u003c\/td\u003e\n\u003ctd\u003eA20148\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eIf you own the smaller pair, you want the \u003ca href=\"\/products\/fluval-07-impeller-cover-107\"\u003eimpeller cover for the 107\u003c\/a\u003e or the \u003ca href=\"\/products\/fluval-07-impeller-cover-207\"\u003eimpeller cover for the 207\u003c\/a\u003e instead.\u003c\/p\u003e\n\n\u003ch3\u003eWhich filter is which?\u003c\/h3\u003e\n\u003cp\u003eThe two canisters this cover suits are the large-body 07 models. Fluval publishes two flow figures for each, and the difference between them is the point: the headline number is measured on an empty canister, and the second is what the filter actually turns over with media in the baskets.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eAquarium capacity\u003c\/th\u003e\n\u003cth\u003ePump output (empty)\u003c\/th\u003e\n\u003cth\u003eFilter circulation (media loaded)\u003c\/th\u003e\n\u003cth\u003eMax head\u003c\/th\u003e\n\u003cth\u003ePower at 240 V\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e307\u003c\/td\u003e\n\u003ctd\u003e90–330 L\u003c\/td\u003e\n\u003ctd\u003e1,150 L\/h\u003c\/td\u003e\n\u003ctd\u003e780 L\/h\u003c\/td\u003e\n\u003ctd\u003e1.75 m\u003c\/td\u003e\n\u003ctd\u003e15 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e407\u003c\/td\u003e\n\u003ctd\u003e150–500 L\u003c\/td\u003e\n\u003ctd\u003e1,450 L\/h\u003c\/td\u003e\n\u003ctd\u003e930 L\/h\u003c\/td\u003e\n\u003ctd\u003e2.25 m\u003c\/td\u003e\n\u003ctd\u003e20 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSize a tank against the circulation figure, not the pump output. Max head is the vertical lift at which flow falls to zero, so a cabinet-mounted 307 is already using part of its 1.75 m before the hoses turn a corner.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x impeller cover\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNot included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe impeller.\u003c\/strong\u003e This is the cover only — see the \u003ca href=\"\/products\/fluval-07-impeller-w-ceramic-shaft-rubbers-307\"\u003e307 impeller assembly\u003c\/a\u003e or the \u003ca href=\"\/products\/fluval-07-impeller-w-ceramic-shaft-rubbers-407\"\u003e407 impeller assembly\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe ceramic shaft and rubber bushings.\u003c\/strong\u003e Sold as the \u003ca href=\"\/products\/fluval-06-07-ceramic-impeller-shaft-with-rubber-bushing\"\u003e06\/07 impeller shaft and bushing\u003c\/a\u003e, part A20039.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe motor head.\u003c\/strong\u003e A complete head is a separate part.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for a 307 or 407 whose cover has cracked, gone brittle or lost a locating tab; a second-hand canister that arrived incomplete; and anyone who has found the impeller sitting loose after a service.\u003c\/p\u003e\n\u003cp\u003eNot suitable for the 107 or 207, for any 06 Series canister, or for the FX Series. It will not fix low flow caused by clogged media, a blocked intake strainer or a kinked hose — check those first, because they are far more common than a failed cover.\u003c\/p\u003e\n\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eTake the cover off at every impeller clean and look at it in the light. Hairline cracks radiating from the locating points are the usual failure, and they show up long before the part actually breaks. Wipe the mating face clear of slime so the cover sits flat, and never refit a cover that has visibly bowed — a bowed cover holds the impeller at a slight angle and wears the shaft ends unevenly.\u003c\/p\u003e\n\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/fluval-06-07-ceramic-impeller-shaft-with-rubber-bushing\"\u003eCeramic impeller shaft and bushing (A20039)\u003c\/a\u003e — the part that usually needs replacing alongside a damaged cover\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/fluval-07-basket-cover-307-407\"\u003e307\/407 media basket cover\u003c\/a\u003e — the other moulded part that stops water bypassing where it should not\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/fluval-07-primer-assembly-107-407\"\u003e07 Series primer assembly\u003c\/a\u003e — for a canister that has stopped self-priming\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eSupplied as a genuine Fluval replacement part. Your rights under the Australian Consumer Law apply in full and nothing here limits them. Fluval does not quote a separate warranty term on moulded service parts. Ships as a standard small parcel anywhere in Australia.\u003c\/p\u003e\n\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eDoes the Fluval A20148 impeller cover fit a 107 or 207?\u003c\/h4\u003e\n\u003cp\u003eNo. Fluval lists A20148 against the 307 and 407 only. The 107 takes part A20113 and the 207 takes part A20133, and the two are not interchangeable with the large-body cover.\u003c\/p\u003e\n\u003ch4\u003eWill it fit a Fluval 306 or 406?\u003c\/h4\u003e\n\u003cp\u003eFluval lists A20148 for the 307 and 407 alone. The 06 Series canisters are served by their own parts list, so check your model against that rather than assuming the 07 cover carries back.\u003c\/p\u003e\n\u003ch4\u003eMy canister has started rattling. Is the cover the problem?\u003c\/h4\u003e\n\u003cp\u003eIt can be, but check in order: a worn or chipped ceramic shaft first, then the impeller magnet for cracks, then the cover for distortion. A rattle that changes pitch when you press on the motor head usually points at the cover or the shaft rather than the motor.\u003c\/p\u003e\n\u003ch4\u003eIs the cover the same as the impeller well?\u003c\/h4\u003e\n\u003cp\u003eNo. The well is the moulded chamber in the motor head that the impeller spins inside. The cover is the separate plate that closes it.\u003c\/p\u003e\n\u003ch4\u003eDo I need to replace the impeller at the same time?\u003c\/h4\u003e\n\u003cp\u003eNot automatically. If the impeller magnet is smooth, uncracked and the vanes are intact, reuse it. Replace both when the cover has broken and let the impeller run loose, because the shaft ends will usually have worn by then.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":55293304635683,"sku":"FVL018","price":26.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-07-impeller-cover-307-46120696185123.webp?v=1790240278","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/fluval-07-impeller-cover-307-407","provider":"Nicks AOT","version":"1.0","type":"link"}