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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 - fluval,

Fluval 307 perfomance - fluval,

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

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

£23.95
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Fluval filter media 6 - fluval,

Fluval filter media 6 - fluval,

£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 - fluval,

Fluval fx4 fx5 - fluval,

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

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

£4.25
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Compatible filter media for - compatible,

Compatible filter media for - compatible,

£7.99
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Fluval suction cups 4 - cups,

Fluval suction cups 4 - cups,

£5.95
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Fluval new series - fluval,

Fluval new series - fluval,

£26.99
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Compatible fluval u4 foam - x,

Compatible fluval u4 foam - x,

£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,

Fluval brackets - fluval,

£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 filter - fluval,

Fluval external power filter - fluval,

£247.99
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Compatible foam filter - x,

Compatible foam filter - x,

£2.99
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Compatible fluval biomax - biomax, for

Compatible fluval biomax - biomax, for

£13.99
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Compatible fluval - fluval, u4

Compatible fluval - fluval, u4

£13.99
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Compatible fluval bio foam max - compatible,

Compatible fluval bio foam max - compatible,

£6.99
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Fluval fx4 filter - fluval,

Fluval fx4 filter - fluval,

£114.75
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Fluval replacement rubber - fluval,

Fluval replacement rubber - fluval,

£10.39
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Fluval poly carbon filter - carbon,

Fluval poly carbon filter - carbon,

£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 - fluval,

Fluval ribbed hose hosing fish - fluval,

£25.99
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Fluval clean clear - fluval,

Fluval clean clear - fluval,

£13.99
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Compatible polycarbon - 8, x

Compatible polycarbon - 8, x

£10.49
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Fluval external filter - filter, 207

Fluval external filter - filter, 207

£247.99
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Fluval spec stage a1377 - fluval,

Fluval spec stage a1377 - fluval,

£7.95
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Fluval replacement parts - fluval,

Fluval replacement parts - fluval,

£15.45
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Compatible fluval u3 foam - 4, x

Compatible fluval u3 foam - 4, x

£9.49
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Fluval 107 207 - 307, 407

Fluval 107 207 - 307, 407

£159.99
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Fluval external filter - filter, with

Fluval external filter - filter, with

£159.99
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Compatible polycarbon - 4, x

Compatible polycarbon - 4, x

£6.49
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Fluval spray bar - fx, kit

Fluval spray bar - fx, kit

£22.99
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Fluval edge media - edge,

Fluval edge media - edge,

£8.95
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Fluval plus compatible - 4,

Fluval plus compatible - 4,

£13.99
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Foam sponge filter pads - x,

Foam sponge filter pads - x,

£11.99
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Fluval filter shrimp - filter,

Fluval filter shrimp - filter,

£14.99
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Spray bar for fluval u3 - for, u1

Spray bar for fluval u3 - for, u1

£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, fx-uvc

Fluval uvc line - fluval, fx-uvc

£106.99
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Fluval internal aquarium - internal,

Fluval internal aquarium - internal,

£73.49
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Fluval internal aquarium - u4,

Fluval internal aquarium - u4,

£67.99
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Compatible foam filter - x,

Compatible foam filter - x,

£4.49
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Replacement barrel nut cover - barrel,

Replacement barrel nut cover - barrel,

£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 - performance,

Fluval high performance air - performance,

£30.99
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Fluval spare parts genuine - parts,

Fluval spare parts genuine - parts,

£16.49
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Compatible fluval u2 - fluval, foam

Compatible fluval u2 - fluval, foam

£8.49
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Compatible filter media for - compatible,

Compatible filter media for - compatible,

£5.99
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Fluval foams filter pads - x,

Fluval foams filter pads - x,

£3.99
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Compatible foam filter - 4, x

Compatible foam filter - 4, x

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

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

£10.65
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Compatible fluval u4 foam - u4,

Compatible fluval u4 foam - u4,

£10.49
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Out front adjustable spray - out,

Out front adjustable spray - out,

£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 - fish,

Fluval aquarium fish tank fx4 - fish,

£13.70
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Fluval flex lighting - fluval,

Fluval flex lighting - fluval,

£9.60
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Compatible fluval u2 foam - compatible,

Compatible fluval u2 foam - compatible,

£8.99
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Fluval filter media - fluval,

Fluval filter media - fluval,

£9.25
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Fluval fx4 filter service kit - fx4,

Fluval fx4 filter service kit - fx4,

£134.05
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Compatible fluval u3 foam - 4, x

Compatible fluval u3 foam - 4, x

£9.49
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Fluval fx4 fx5 fx6 - fx5,

Fluval fx4 fx5 fx6 - fx5,

£12.80
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Fluval fx4 fx5 fx6 rubber - fluval,

Fluval fx4 fx5 fx6 rubber - fluval,

£10.95
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Fluval series u3 u4 - u2,

Fluval series u3 u4 - u2,

£8.95
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Compatible fluval u3 foam - x,

Compatible fluval u3 foam - x,

£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 - filter,

Fluval clearmax filter media - filter,

£10.49
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Compatible foam filter - 4, x

Compatible foam filter - 4, x

£5.49
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Fluval internal filter 240 - fluval, filter,

Fluval internal filter 240 - fluval, filter,

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

Fluval fx4 fx5 fx6 - fx4/fx5/fx6, top

£5.50
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Foam sponge filter - /, pads

Foam sponge filter - /, pads

£20.99
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Fluval betta diffusion - diffusion, chamber

Fluval betta diffusion - diffusion, 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 - fluval,

Fluval external filter - fluval,

£8.00
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Fluval fx4 external - fluval,

Fluval fx4 external - fluval,

£244.95
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Fluval spray bar kit - fluval,

Fluval spray bar kit - fluval,

£22.99
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Fluval fx6 fx4 - fluval, external

Fluval fx6 fx4 - fluval, external

£311.99
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Fluval new series - fluval,

Fluval new series - fluval,

£29.99
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Fluval intake strainer - intake, made

Fluval intake strainer - intake, made

£14.65
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Compatible fluval - compatible, u2

Compatible fluval - compatible, u2

£5.99
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Fluval fx2 fx4 fx5 fx6 - fx2,

Fluval fx2 fx4 fx5 fx6 - fx2,

£25.21
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Fluval series internal - fluval,

Fluval series internal - fluval,

£22.89
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Compatible pre filter - x,

Compatible pre filter - x,

£4.49
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Compatible foam filter - x,

Compatible foam filter - x,

£4.99
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Fluval fx5 aqua stop - aqua,

Fluval fx5 aqua stop - aqua,

£25.35
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Fluval spare impeller u3 - impeller,

Fluval spare impeller u3 - impeller,

£21.99
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Fluval u4 filter - u1,

Fluval u4 filter - u1,

£6.95
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Fluval internal power - fluval, u4

Fluval internal power - fluval, u4

£8.48
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Fluval bio fix biological - fluval,

Fluval bio fix biological - fluval,

£32.99
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Fluval external filter 107 - ,

Fluval external filter 107 - ,

£110.09
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Fluval clearmax - clearmax, x

Fluval clearmax - clearmax, x

£10.83
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Fluval compatible foam - x,

Fluval compatible foam - x,

£4.99
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Compatible fluval 65g - compatible,

Compatible fluval 65g - compatible,

£14.99
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Fluval plant led - plant, 4.0

Fluval plant led - plant, 4.0

£275.99
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📊96 listings · from £2.99 · avg £40.13
⚠️ These listings were last updated more than 9 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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