{"product_id":"fluval-fx4-motor-seal-ring","title":"Fluval FX4 Motor Seal Ring","description":"\u003cp\u003e\u003cstrong\u003eThe O-ring that keeps the FX4's motor housing dry — replace it any time the motor end is opened.\u003c\/strong\u003e This is the genuine Fluval motor seal ring (part A20211) for the FX4 canister filter. It's cheap, it's quick to fit, and a perished one is the difference between a routine service and a flooded cabinet.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Fluval part A20211\u003c\/strong\u003e — the correct seal for the FX4 motor housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals the motor end against water ingress\u003c\/strong\u003e — the seal that fails is the one nobody thinks to check.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended at every service\u003c\/strong\u003e where the motor housing is opened — replacing the shaft, impeller or motor unit.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFits the Fluval FX4.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInexpensive relative to the alternative\u003c\/strong\u003e — a failed seal risks the motor and whatever's underneath the cabinet.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer part number\u003c\/th\u003e\n\u003ctd\u003eA20211\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eFluval FX4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eMotor housing O-ring seal\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\u003eSold as\u003c\/th\u003e\n\u003ctd\u003eIndividually\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWill it fit your filter?\u003c\/h3\u003e\u003cp\u003eConfirmed for the Fluval FX4. Fluval's own listings aren't fully consistent about whether the same ring also suits the FX5 — some show it, some don't — so we're only confirming the FX4 fit here. If you're fitting an FX5 or FX6, check the ring against your old one before ordering, or ask us to confirm first.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for the Fluval FX4, fresh or marine. Not confirmed for the FX5 or FX6 — see above. Not suitable for the Fluval 06\/07-series canisters, which use a different motor housing.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Fluval's standard warranty against manufacturing defects, in addition to your rights under Australian Consumer Law. Standard freight class.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWhen should I replace this seal?\u003c\/h4\u003e\u003cp\u003eAny time the motor end is opened — for example when replacing the \u003ca href=\"\/products\/fluval-fx4-impeller-shaft\"\u003eimpeller shaft\u003c\/a\u003e, the \u003ca href=\"\/products\/fluval-fx4-fx2-impeller-assembly\"\u003eimpeller assembly\u003c\/a\u003e or the \u003ca href=\"\/products\/fluval-fx4-motor-unit-w-seal-ring\"\u003emotor unit\u003c\/a\u003e — or if you notice dampness around the motor housing.\u003c\/p\u003e\u003ch4\u003eDoes this fit the Fluval FX5 or FX6?\u003c\/h4\u003e\u003cp\u003eWe've only confirmed part A20211 against the FX4. Check your old seal's size before ordering for an FX5 or FX6, or ask us first.\u003c\/p\u003e\u003ch4\u003eCan I reuse the old seal instead?\u003c\/h4\u003e\u003cp\u003eNot recommended. Seals compress and flatten with age, and a flattened seal won't hold pressure even if it looks intact.\u003c\/p\u003e\u003ch4\u003eDo I need lubricant to fit it?\u003c\/h4\u003e\u003cp\u003eA light smear of aquarium-safe silicone grease helps the seal seat evenly and stops it pinching on refit — not compulsory, but it extends the life of the new seal.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":54774149841187,"sku":"PF152c","price":14.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-fx4-motor-seal-ring-43180005359907.webp?v=1790234085","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/fluval-fx4-motor-seal-ring","provider":"Nicks AOT","version":"1.0","type":"link"}