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Fluval 4

4

Fluval 4 for sale on largest auction and classifieds sites

Home / Lenses & Filters / Fluval 4 refurbished & used for sale | For Sale UK
Fluval internal aquarium - fluval,

Fluval internal aquarium - fluval,

£73.49 · Buy It Now

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Compatible filter media for - filter,

Compatible filter media for - filter,

£5.49 · Buy It Now

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Fluval mini u3 u4 - fluval, mini,u1,u2,u3,u4

Fluval mini u3 u4 - fluval, mini,u1,u2,u3,u4

£22.20 · Buy It Now

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Fluval 107 207 - 307, 407

Fluval 107 207 - 307, 407

£159.99 · Buy It Now

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Fluval spec stage a1377 - 2,

Fluval spec stage a1377 - 2,

£7.75 · Buy It Now

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Compatible fluval u4 - compatible,

Compatible fluval u4 - compatible,

£10.49 · Buy It Now

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Fluval new series - new, u-series

Fluval new series - new, u-series

£64.99 · Buy It Now

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Fluval plus compatible - 4,

Fluval plus compatible - 4,

£5.49 · Buy It Now

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Fluval spare parts genuine - parts,

Fluval spare parts genuine - parts,

£13.45 · Buy It Now

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Fluval fx4 fx5 - fluval, fx6

Fluval fx4 fx5 - fluval, fx6

£16.00 · Buy It Now

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Fluval filter media 6 - u3,

Fluval filter media 6 - u3,

£18.40 · Buy It Now

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Fluval fx4 fx5 fx6 canister - fx4,

Fluval fx4 fx5 fx6 canister - fx4,

£5.99 · Buy It Now

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Fluval spare parts genuine - fluval,

Fluval spare parts genuine - fluval,

£16.49 · Buy It Now

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Compatible fluval - compatible,

Compatible fluval - compatible,

£6.99 · Buy It Now

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Compatible foam filter - 4,

Compatible foam filter - 4,

£4.49 · Buy It Now

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Compatible fluval u4 - x,

Compatible fluval u4 - x,

£35.99 · Buy It Now

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Fluval new series - fluval, u-series

Fluval new series - fluval, u-series

£29.99 · Buy It Now

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Compatible fluval bio foam - compatible, max

Compatible fluval bio foam - compatible, max

£6.99 · Buy It Now

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Fluval replacement parts - replacement,

Fluval replacement parts - replacement,

£199.99 · Buy It Now

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Fluval external filter 107 - fluval,

Fluval external filter 107 - fluval,

£224.99 · Buy It Now

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Fluval foams filter - 4,

Fluval foams filter - 4,

£3.99 · Buy It Now

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Fluval filter media - media, u2

Fluval filter media - media, u2

£9.99 · Buy It Now

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Fluval 307 perfomance - fluval,

Fluval 307 perfomance - fluval,

£73.50 · Buy It Now

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Compatible foam filter - 4,

Compatible foam filter - 4,

£4.99 · Buy It Now

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Spray bar for - bar, u3

Spray bar for - bar, u3

£16.64 · Buy It Now

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Fluval external filter - fluval, 207

Fluval external filter - fluval, 207

£247.99 · Buy It Now

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Fluval plant led - plant, aquarium

Fluval plant led - plant, aquarium

£156.70 · Buy It Now

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Fluval series u3 u4 - fluval,

Fluval series u3 u4 - fluval,

£8.99 · Buy It Now

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Compatible fluval clean - compatible, &

Compatible fluval clean - compatible, &

£9.99 · Buy It Now

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Fluval fx4 external canister - external,

Fluval fx4 external canister - external,

£247.99 · Buy It Now

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Compatible fluval u2 foam - fluval,

Compatible fluval u2 foam - fluval,

£8.49 · Buy It Now

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170g compatible biomax for - 170g,

170g compatible biomax for - 170g,

£5.99 · Buy It Now

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Fluval filter media - u4,

Fluval filter media - u4,

£22.99 · Buy It Now

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Compatible fluval u4 foam - u4,

Compatible fluval u4 foam - u4,

£13.99 · Buy It Now

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Fluval fx4 fx5 fx6 filter - fx4/fx5/fx6, rim

Fluval fx4 fx5 fx6 filter - fx4/fx5/fx6, rim

£10.65 · Buy It Now

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Fluval fx4 used months - fluval, old

Fluval fx4 used months - fluval, old

£156.70 · Buy It Now

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Fluval spray bar - fx,

Fluval spray bar - fx,

£22.99 · Buy It Now

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Fluval media value - fluval, u3

Fluval media value - fluval, u3

£22.90 · Buy It Now

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Fluval external power filter - power,

Fluval external power filter - power,

£247.99 · Buy It Now

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Compatible fluval fx2 - compatible, fx4

Compatible fluval fx2 - compatible, fx4

£7.99 · Buy It Now

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Compatible polycarbon - 8,

Compatible polycarbon - 8,

£10.49 · Buy It Now

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Fluval fx4 fx5 fx6 external - fx5,

Fluval fx4 fx5 fx6 external - fx5,

£18.50 · Buy It Now

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Fluval fx4 canister filter - fx4,

Fluval fx4 canister filter - fx4,

£167.10 · Buy It Now

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Compatible poly filter - 5,

Compatible poly filter - 5,

£5.99 · Buy It Now

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Fluval flex lighting - fluval, 2.0

Fluval flex lighting - fluval, 2.0

£9.60 · Buy It Now

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Fluval biolife fish tank - fluval,

Fluval biolife fish tank - fluval,

£7.99 · Buy It Now

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Fluval fx4 motor unit aquarium - fx4,

Fluval fx4 motor unit aquarium - fx4,

£114.75 · Buy It Now

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Fluval fx6 fx4 - fluval, fx2

Fluval fx6 fx4 - fluval, fx2

£305.99 · Buy It Now

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Fluval quick clear aquarium - fluval,

Fluval quick clear aquarium - fluval,

£8.86 · Buy It Now

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Foam sponge filter pads - sponge,

Foam sponge filter pads - sponge,

£11.99 · Buy It Now

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Fluval led plant - plant, 4.0

Fluval led plant - plant, 4.0

£179.99 · Buy It Now

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Fluval poly carbon filter - carbon,

Fluval poly carbon filter - carbon,

£7.70 · Buy It Now

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Fluval ribbed hose hosing - hose, fish

Fluval ribbed hose hosing - hose, fish

£24.99 · Buy It Now

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Fluval fx4 fx5 - fluval, click

Fluval fx4 fx5 - fluval, click

£4.50 · Buy It Now

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Fluval fx5 fx6 - fx5,

Fluval fx5 fx6 - fx5,

£24.99 · Buy It Now

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Fluval u4 filter - u2,

Fluval u4 filter - u2,

£36.99 · Buy It Now

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Fluval fx4 external - fluval,

Fluval fx4 external - fluval,

£187.90 · Buy It Now

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Compatible with fluval - fluval, u4

Compatible with fluval - fluval, u4

£3.99 · Buy It Now

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Foam sponge filter - 12, /

Foam sponge filter - 12, /

£20.99 · Buy It Now

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Fluval spec flex biomax - fluval, spec/flex

Fluval spec flex biomax - fluval, spec/flex

£10.95 · Buy It Now

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Compatible filter media for - filter,

Compatible filter media for - filter,

£35.99 · Buy It Now

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Fluval 307 external filter

Fluval 307 external filter

£94.30 · Buy It Now

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Fluval a402 aquarium air pump - fluval,

Fluval a402 aquarium air pump - fluval,

£10.62 · Buy It Now

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Compatible fluval u3 foam - 4,

Compatible fluval u3 foam - 4,

£13.99 · Buy It Now

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Compatible with fluval plus - with,

Compatible with fluval plus - with,

£4.99 · Buy It Now

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Fluval series internal - u,

Fluval series internal - u,

£29.99 · Buy It Now

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Fluval fx2 fx4 - fx4, fx5

Fluval fx2 fx4 - fx4, fx5

£25.21 · Buy It Now

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Fluval purge valve - valve, for

Fluval purge valve - valve, for

£18.79 · Buy It Now

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Fluval spray bar kit for - fx,

Fluval spray bar kit for - fx,

£23.45 · Buy It Now

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Compatible fluval clean - compatible, &

Compatible fluval clean - compatible, &

£18.99 · Buy It Now

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Fluval fx4 filter service - fx4,

Fluval fx4 filter service - fx4,

£114.75 · Buy It Now

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Fluval fx4 fx5 - fluval,

Fluval fx4 fx5 - fluval,

£25.30 · Buy It Now

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Fluval brackets - fluval, u2

Fluval brackets - fluval, u2

£14.99 · Buy It Now

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Fluval evo spec - fluval,

Fluval evo spec - fluval,

£6.86 · Buy It Now

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Fluval fx4 aquarium filter - fluval,

Fluval fx4 aquarium filter - fluval,

£37.69 · Buy It Now

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Fluval filter shrimp intake - filter,

Fluval filter shrimp intake - filter,

£14.99 · Buy It Now

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Fluval fx4 canister - fx4, filter

Fluval fx4 canister - fx4, filter

£247.99 · Buy It Now

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Fluval uvc line - fluval, fx-uvc

Fluval uvc line - fluval, fx-uvc

£98.99 · Buy It Now

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Fluval reef led 46w - fluval,

Fluval reef led 46w - fluval,

£161.90 · Buy It Now

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Fluval new series - new, u-series

Fluval new series - new, u-series

£73.52 · Buy It Now

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Fluval nitrite remover - remover, media

Fluval nitrite remover - remover, media

£11.40 · Buy It Now

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Compatible polycarbon - 4,

Compatible polycarbon - 4,

£6.99 · Buy It Now

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Fluval fx4 fx5 fx6 - fx4,

Fluval fx4 fx5 fx6 - fx4,

£13.90 · Buy It Now

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Fluval biomax maximum aquarium - maximum,

Fluval biomax maximum aquarium - maximum,

£12.99 · Buy It Now

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Compatible fluval u3 - x,

Compatible fluval u3 - x,

£9.49 · Buy It Now

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Fluval series poly carb - fluval, u

Fluval series poly carb - fluval, u

£8.04 · Buy It Now

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Compatible fluval biomax - compatible, for

Compatible fluval biomax - compatible, for

£13.99 · Buy It Now

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Fluval 307 external filter - external,

Fluval 307 external filter - external,

£159.99 · Buy It Now

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Fluval marina i25 i110 - i110, i160

Fluval marina i25 i110 - i110, i160

£6.12 · Buy It Now

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Fluval betta diffusion chamber - betta,

Fluval betta diffusion chamber - betta,

£4.49 · Buy It Now

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Compatible pre filter - 4,

Compatible pre filter - 4,

£4.49 · Buy It Now

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Fluval fx4 fx5 fx6 canister - fluval,

Fluval fx4 fx5 fx6 canister - fluval,

£10.50 · Buy It Now

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Compatible fluval u3 foam - fluval,

Compatible fluval u3 foam - fluval,

£13.49 · Buy It Now

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Fluval u4 clearmax - u3,

Fluval u4 clearmax - u3,

£6.60 · Buy It Now

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Compatible foam filter - 4,

Compatible foam filter - 4,

£5.49 · Buy It Now

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Fluval 106 206 306 - fluval,

Fluval 106 206 306 - fluval,

£305.99 · Buy It Now

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📊96 listings · from £3.99 · avg £52.74
⚠️ These listings were last updated more than 12 days ago. Search for fresh listings

Browse 96 fluval 4 listings currently in our index. Prices range from £3.99 to £305.99, with an average of £52.74. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about fluval 4 →

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Everything you need to know about fluval 4

Whether you are looking for a brand-new or second-hand fluval 4, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £3.99, while premium listings can reach £305.99 — giving you a wide budget spread to work with. The average price of £52.74 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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