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Fluval 4

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Fluval 4 for sale on largest auction and classifieds sites

Home / Tool Accessories / Fluval 4 for sale – 96 used, around £13 | For Sale UK
Fluval 307 perfomance canister - fluval,

Fluval 307 perfomance canister - fluval,

£94.30
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Fluval mini u3 u4 - fluval, mini,u1,u2,u3,u4

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

£23.95
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Fluval filter media - fluval, 6

Fluval filter media - fluval, 6

£22.75
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Fluval fx4 external canister - fluval,

Fluval fx4 external canister - fluval,

£247.99
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Fluval fx4 fx5 fx6 - fluval,

Fluval fx4 fx5 fx6 - fluval,

£18.80
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4xpcs pre filter sponge foam - 4xpcs,

4xpcs pre filter sponge foam - 4xpcs,

£4.25
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Compatible filter media for - media,

Compatible filter media for - media,

£7.99
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Fluval suction cups 4 - suction,

Fluval suction cups 4 - suction,

£5.95
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Fluval new series - new, u-series

Fluval new series - new, u-series

£26.99
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Compatible fluval u4 - fluval, foam

Compatible fluval u4 - fluval, foam

£10.49
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Fluval fx4 external canister - fluval,

Fluval fx4 external canister - fluval,

£156.70
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Fluval brackets - fluval, u3

Fluval brackets - fluval, u3

£14.99
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Fluval spare parts genuine - fluval,

Fluval spare parts genuine - fluval,

£13.45
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Fluval external power - fluval,

Fluval external power - fluval,

£247.99
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Compatible foam filter - 4, x

Compatible foam filter - 4, x

£2.99
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Compatible fluval biomax for - compatible,

Compatible fluval biomax for - compatible,

£13.99
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Compatible fluval - compatible,

Compatible fluval - compatible,

£13.99
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Compatible fluval bio - fluval, bio-foam

Compatible fluval bio - fluval, bio-foam

£6.99
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Fluval fx4 filter - filter, service

Fluval fx4 filter - filter, service

£114.75
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Fluval replacement rubber - fluval,

Fluval replacement rubber - fluval,

£10.39
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Fluval poly carbon filter - fluval,

Fluval poly carbon filter - fluval,

£7.25
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Compatible poly filter - 5,

Compatible poly filter - 5,

£5.99
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Fluval ribbed hose hosing fish - ribbed,

Fluval ribbed hose hosing fish - ribbed,

£25.99
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Fluval clean clear - u,

Fluval clean clear - u,

£13.99
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Compatible polycarbon - compatible,

Compatible polycarbon - compatible,

£10.49
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Fluval external filter 107 207 - external,

Fluval external filter 107 207 - external,

£247.99
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Fluval spec stage - fluval, a1377

Fluval spec stage - fluval, a1377

£7.95
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Fluval replacement parts - fluval,

Fluval replacement parts - fluval,

£15.45
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Compatible fluval u3 - 4,

Compatible fluval u3 - 4,

£9.49
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Fluval 107 207 307 407 - , fx

Fluval 107 207 307 407 - , fx

£159.99
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Fluval external filter with - fluval,

Fluval external filter with - fluval,

£159.99
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Compatible polycarbon - compatible,

Compatible polycarbon - compatible,

£6.49
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Fluval spray bar kit fx2 - fluval,

Fluval spray bar kit fx2 - fluval,

£22.99
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Fluval edge media pre - edge, pre-filter

Fluval edge media pre - edge, pre-filter

£8.95
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Fluval plus compatible - 4,

Fluval plus compatible - 4,

£13.99
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Foam sponge filter - 6,

Foam sponge filter - 6,

£11.99
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Fluval filter shrimp intake - shrimp,

Fluval filter shrimp intake - shrimp,

£14.99
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Spray bar for fluval u3 - spray,

Spray bar for fluval u3 - spray,

£16.64
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Compatible fluval u4 foam - compatible,

Compatible fluval u4 foam - compatible,

£13.99
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Fluval uvc line - fluval, in-line

Fluval uvc line - fluval, in-line

£106.99
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Fluval internal aquarium - fluval,

Fluval internal aquarium - fluval,

£73.49
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Fluval internal aquarium - u4,

Fluval internal aquarium - u4,

£67.99
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Compatible foam filter - compatible,

Compatible foam filter - compatible,

£4.49
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Replacement barrel nut - nut, cover

Replacement barrel nut - nut, cover

£5.99
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Compatible with fluval - compatible,

Compatible with fluval - compatible,

£9.99
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Fluval genuine spare part - fluval,

Fluval genuine spare part - fluval,

£6.99
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Fluval high performance air - high,

Fluval high performance air - high,

£30.99
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Fluval spare parts genuine - fluval,

Fluval spare parts genuine - fluval,

£16.49
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Compatible fluval u2 foam - compatible,

Compatible fluval u2 foam - compatible,

£8.49
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Compatible filter media - filter, for

Compatible filter media - filter, for

£5.99
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Fluval foams filter pads - 4,

Fluval foams filter pads - 4,

£3.99
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Compatible foam filter - compatible,

Compatible foam filter - compatible,

£4.99
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Fluval fx4 fx5 - fx4/fx5/fx6, filter

Fluval fx4 fx5 - fx4/fx5/fx6, filter

£10.65
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Compatible fluval u4 foam - compatible,

Compatible fluval u4 foam - compatible,

£10.49
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Out front adjustable - adjustable, spray

Out front adjustable - adjustable, spray

£10.00
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170g compatible biomax for - 170g,

170g compatible biomax for - 170g,

£38.99
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Fluval aquarium fish tank fx4 - aquarium,

Fluval aquarium fish tank fx4 - aquarium,

£13.70
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Fluval flex lighting - fluval,

Fluval flex lighting - fluval,

£9.60
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Compatible fluval u2 foam - x,

Compatible fluval u2 foam - x,

£8.99
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Fluval filter media - fluval,

Fluval filter media - fluval,

£9.25
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Fluval fx4 filter - fluval, service

Fluval fx4 filter - fluval, service

£134.05
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Compatible fluval u3 foam - fluval,

Compatible fluval u3 foam - fluval,

£9.49
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Fluval fx4 fx5 - fx4, canister

Fluval fx4 fx5 - fx4, canister

£12.80
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Fluval fx4 fx5 - fluval, fx4/fx5/fx6

Fluval fx4 fx5 - fluval, fx4/fx5/fx6

£10.95
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Fluval series u3 u4 - u,

Fluval series u3 u4 - u,

£8.95
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Compatible fluval u3 foam - 4,

Compatible fluval u3 foam - 4,

£13.49
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Fluval mini u3 u4 - mini,,

Fluval mini u3 u4 - mini,,

£60.49
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Fluval clean clear - u, &

Fluval clean clear - u, &

£8.84
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Fluval clearmax filter media - fluval,

Fluval clearmax filter media - fluval,

£10.49
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Compatible foam filter - 4,

Compatible foam filter - 4,

£5.49
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Fluval internal filter 240 - u4,

Fluval internal filter 240 - u4,

£31.90
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Fluval fx4 fx5 fx6 - fx4/fx5/fx6, click

Fluval fx4 fx5 fx6 - fx4/fx5/fx6, click

£5.50
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Foam sponge filter pads - x,

Foam sponge filter pads - x,

£20.99
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Fluval betta diffusion - betta, chamber

Fluval betta diffusion - betta, chamber

£4.59
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Single adjustable outlet for - single,

Single adjustable outlet for - single,

£13.25
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Fluval external filter - external,

Fluval external filter - external,

£8.00
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Fluval fx4 external canister - external,

Fluval fx4 external canister - external,

£244.95
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Fluval spray bar kit - fx,

Fluval spray bar kit - fx,

£22.99
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Fluval fx6 fx4 - fx6, fx2

Fluval fx6 fx4 - fx6, fx2

£311.99
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Fluval new series - new, u-series

Fluval new series - new, u-series

£29.99
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Fluval intake strainer made - intake,

Fluval intake strainer made - intake,

£14.65
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Compatible fluval - fluval, u2

Compatible fluval - fluval, u2

£5.99
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Fluval fx2 fx4 - fluval, fx5

Fluval fx2 fx4 - fluval, fx5

£25.21
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Fluval series internal - series,

Fluval series internal - series,

£22.89
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Compatible pre filter - x,

Compatible pre filter - x,

£4.49
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Compatible foam filter - 4,

Compatible foam filter - 4,

£4.99
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Fluval fx5 aqua - fx5, stop

Fluval fx5 aqua - fx5, stop

£25.35
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Fluval spare impeller u3 - fluval,

Fluval spare impeller u3 - fluval,

£21.99
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Fluval u4 filter - fluval, u2

Fluval u4 filter - fluval, u2

£6.95
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Fluval internal power - internal,

Fluval internal power - internal,

£8.48
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Fluval bio fix biological - bio,

Fluval bio fix biological - bio,

£32.99
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Fluval external filter - filter,

Fluval external filter - filter,

£110.09
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Fluval clearmax - clearmax, 100g)

Fluval clearmax - clearmax, 100g)

£10.83
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Fluval compatible foam - x,

Fluval compatible foam - x,

£4.99
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Compatible fluval 65g - fluval,

Compatible fluval 65g - fluval,

£14.99
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Fluval plant led aquarium - led,

Fluval plant led aquarium - led,

£275.99
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📊96 listings · from £2.99 · avg £40.13
⚠️ These listings were last updated more than 10 days ago. Search for fresh listings

Browse 96 fluval 4 listings currently in our index. Prices range from £2.99 to £311.99, with an average of £40.13. 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 £2.99, while premium listings can reach £311.99 — giving you a wide budget spread to work with. The average price of £40.13 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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