For Sale UK

Fluval 4

4

Fluval 4 for sale on largest auction and classifieds sites

Home / Tool Accessories / Fluval 4 refurbished & used for sale | For Sale UK
Unopened fluval 307 external - unopened,

Unopened fluval 307 external - unopened,

£151.50
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Compatible filter media for - filter,

Compatible filter media for - filter,

£4.99
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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
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Compatible fluval u3 foam - 4,

Compatible fluval u3 foam - 4,

£9.49
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Fluval replacement parts - fluval,

Fluval replacement parts - fluval,

£199.99
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Fluval new series - fluval, u-series

Fluval new series - fluval, u-series

£54.99
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Fluval 107 207 - , 407

Fluval 107 207 - , 407

£159.99
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Fluval spare parts - parts, genuine

Fluval spare parts - parts, genuine

£13.45
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Fluval external filter 107 - fluval,

Fluval external filter 107 - fluval,

£159.99
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Fluval spray bar kit - spray,

Fluval spray bar kit - spray,

£22.99
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Fluval internal aquarium - u4,

Fluval internal aquarium - u4,

£42.29
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Compatible fluval u4 foam - 4,

Compatible fluval u4 foam - 4,

£10.49
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Compatible poly filter - 5,

Compatible poly filter - 5,

£5.99
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Compatible fluval u4 foam - compatible,

Compatible fluval u4 foam - compatible,

£19.49
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Compatible fluval biomax - compatible,

Compatible fluval biomax - compatible,

£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 filter media 6 - fluval, u2

Fluval filter media 6 - fluval, u2

£18.40
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Compatible foam filter - x,

Compatible foam filter - x,

£14.99
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Fluval underwater internal - fluval,

Fluval underwater internal - fluval,

£26.70
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Fluval fx4 fx5 fx6 canister - fx4,

Fluval fx4 fx5 fx6 canister - fx4,

£16.00
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Fluval fx4 external filter - fx4,

Fluval fx4 external filter - fx4,

£156.70
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Fluval filter media u3 - media, u2

Fluval filter media u3 - media, u2

£10.29
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Compatible fluval - compatible,

Compatible fluval - compatible,

£6.99
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Fluval external filter - fluval,

Fluval external filter - fluval,

£305.99
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Fluval filter media - fluval, u4

Fluval filter media - fluval, u4

£27.54
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Compatible foam filter - x,

Compatible foam filter - x,

£4.49
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Fluval filter shrimp - shrimp, intake

Fluval filter shrimp - shrimp, intake

£14.99
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Fluval mini u3 - mini,, u4

Fluval mini u3 - mini,, u4

£29.99
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Compatible foam filter pads - filter,

Compatible foam filter pads - filter,

£3.99
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Compatible foam filter - x,

Compatible foam filter - x,

£5.99
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170g compatible biomax for - 170g,

170g compatible biomax for - 170g,

£5.99
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Fluval external aquarium - external,

Fluval external aquarium - external,

£224.99
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Fluval brackets - fluval,

Fluval brackets - fluval,

£14.99
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Compatible filter media - compatible,

Compatible filter media - compatible,

£32.99
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Fluval u4 filter - u2,

Fluval u4 filter - u2,

£36.99
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Fluval filter media - fluval,

Fluval filter media - fluval,

£18.99
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Fluval compatible foam - x,

Fluval compatible foam - x,

£4.99
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Out front adjustable - out, in

Out front adjustable - out, in

£10.00
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Compatible fluval fx2 fx4 - compatible, fx5

Compatible fluval fx2 fx4 - compatible, fx5

£12.99
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Fluval plant led - led, aquarium

Fluval plant led - led, aquarium

£229.99
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Fluval uvc line - fluval, in-line

Fluval uvc line - fluval, in-line

£88.75
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Fluval poly carbon filter - poly,

Fluval poly carbon filter - poly,

£7.70
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Fluval internal aquarium - internal,

Fluval internal aquarium - internal,

£73.49
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Spray bar for - for, u3

Spray bar for - for, u3

£16.64
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Fluval 204 205 206 304 - fluval, 204/205/206/304/305/306

Fluval 204 205 206 304 - fluval, 204/205/206/304/305/306

£6.79
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Fluval biomax ceramic - u4,

Fluval biomax ceramic - u4,

£8.99
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Fluval clean clear - clean,

Fluval clean clear - clean,

£13.99
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Fluval fx4 fx5 fx6 rubber - fluval, fx4/fx5/fx6

Fluval fx4 fx5 fx6 rubber - fluval, fx4/fx5/fx6

£9.95
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Fluval flex lighting - fluval,

Fluval flex lighting - fluval,

£9.60
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Fluval plus compatible - fluval, 4

Fluval plus compatible - fluval, 4

£3.49
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Fluval series clean - u,

Fluval series clean - u,

£8.47
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Fluval fx4 fx5 fx6 aquastop - fx4,

Fluval fx4 fx5 fx6 aquastop - fx4,

£26.99
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Fluval plant led aquarium - plant, 4.0

Fluval plant led aquarium - plant, 4.0

£125.50
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Fluval fx4 external - fx4,

Fluval fx4 external - fx4,

£247.99
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Compatible foam filter - 4, x

Compatible foam filter - 4, x

£2.99
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Compatible polymax - 4,

Compatible polymax - 4,

£6.99
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Compatible fluval u4 - 4,

Compatible fluval u4 - 4,

£13.99
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Fluval foams filter - x, pads

Fluval foams filter - x, pads

£3.99
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Compatible foam filter - compatible,

Compatible foam filter - compatible,

£4.99
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Fluval ribbed hose - fluval, hosing

Fluval ribbed hose - fluval, hosing

£24.99
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Fluval aquarium filter u3 - fluval,

Fluval aquarium filter u3 - fluval,

£4.95
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Fluval provac pads - fluval,

Fluval provac pads - fluval,

£7.49
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Compatible fluval u2 - x,

Compatible fluval u2 - x,

£8.49
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Fluval clearmax poly max - fluval, u4

Fluval clearmax poly max - fluval, u4

£9.72
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Fluval internal filter - u4,

Fluval internal filter - u4,

£57.90
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4xpcs pre filter - 4xpcs, foam

4xpcs pre filter - 4xpcs, foam

£2.96
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Compatible with fluval - compatible, fx4

Compatible with fluval - compatible, fx4

£9.99
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Fluval 307 external - 307,

Fluval 307 external - 307,

£156.70
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Compatible with fluval - with,

Compatible with fluval - with,

£23.99
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Fluval reef nano led light - fluval,

Fluval reef nano led light - fluval,

£109.95
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Fluval fx5 aqua - fluval,

Fluval fx5 aqua - fluval,

£25.35
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Spray bar nozzle for - bar, fluval

Spray bar nozzle for - bar, fluval

£7.99
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Compatible bio foam - x,

Compatible bio foam - x,

£14.99
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Compatible foam filter - x,

Compatible foam filter - x,

£3.99
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Fluval fx2 fx4 - x, fx2/fx4/fx5/fx6

Fluval fx2 fx4 - x, fx2/fx4/fx5/fx6

£6.25
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Compatible polycarbon - x,

Compatible polycarbon - x,

£10.49
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Fluval spare parts - fluval, genuine

Fluval spare parts - fluval, genuine

£16.49
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Fluval fx4 filter service kit - fluval,

Fluval fx4 filter service kit - fluval,

£134.05
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Foam sponge filter pads - sponge,

Foam sponge filter pads - sponge,

£20.99
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Compatible fluval chi - compatible,

Compatible fluval chi - compatible,

£7.99
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Fluval spec stage a1377 - stage,

Fluval spec stage a1377 - stage,

£7.75
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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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Fluval series u3 u4 - series, u1

Fluval series u3 u4 - series, u1

£8.99
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Fluval plant shrimp - fluval, stratum

Fluval plant shrimp - fluval, stratum

£20.99
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Foam sponge filter pads - 6,

Foam sponge filter pads - 6,

£11.99
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Fluval replacement rubber - replacement,

Fluval replacement rubber - replacement,

£10.39
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Compatible fluval fx2 fx4 fx5 - fluval,

Compatible fluval fx2 fx4 fx5 - fluval,

£19.99
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Compatible foam filter - compatible,

Compatible foam filter - compatible,

£5.49
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Compatible foam filter - foam,

Compatible foam filter - foam,

£4.99
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Fluval intake strainer made - strainer,,

Fluval intake strainer made - strainer,,

£14.65
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Compatible with fluval plus - compatible, 4

Compatible with fluval plus - compatible, 4

£4.99
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Fluval clearmax - (3, 100g)

Fluval clearmax - (3, 100g)

£10.83
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Compatible fluval u3 foam - fluval,

Compatible fluval u3 foam - fluval,

£9.49
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Fluval filter mini - fluval,

Fluval filter mini - fluval,

£7.99
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Compatible fluval polymax - compatible, u2

Compatible fluval polymax - compatible, u2

£5.99
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Compatible carbon impregnated - carbon,

Compatible carbon impregnated - carbon,

£7.99
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📊96 listings · from £2.96 · avg £37.97
⚠️ These listings were last updated more than 14 days ago. Search for fresh listings

Browse 96 fluval 4 listings currently in our index. Prices range from £2.96 to £305.99, with an average of £37.97. 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 £2.96, while premium listings can reach £305.99 — giving you a wide budget spread to work with. The average price of £37.97 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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