Nitrate filter
Nitrate filter for sale on Ireland's largest auction and classifieds sites
Seachem matrix biological - matrix, - £18.99
Liter matrix provides • Much surface 700 • 170 liters plastic - Free postage - New and Used
Liter matrix provides • Much surface 700 • 170 liters plastic - Free postage - New and Used
Compatible nitrate filter - compatible, - £13.99
Komplett kompatibel ersatz • Filter set juwel • Kompakt bioflow 3.0 - Free postage - New and Used
Komplett kompatibel ersatz • Filter set juwel • Kompakt bioflow 3.0 - Free postage - New and Used
Compatible nitrate filter - compatible, - £4.99
Compatible nitrate foam • Pads juwel compact • Bioflow 3.0 filters - Free postage - New and Used
Compatible nitrate foam • Pads juwel compact • Bioflow 3.0 filters - Free postage - New and Used
Seachem purigen filter colour - purigen, - £13.95
Purigen premium synthetic • Adsorbent that unlike • Any other filtration - Free postage - New and Used
Purigen premium synthetic • Adsorbent that unlike • Any other filtration - Free postage - New and Used
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Seachem denitrate biological - seachem, - £17.89
Best results nitrate • Should placed assure • Flow water through - Free postage - New and Used
Best results nitrate • Should placed assure • Flow water through - Free postage - New and Used
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48 listings · from £3.99 · avg £23.84
⚠️ These listings were last updated more than 12 days ago.
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Browse 48 nitrate filter listings currently in our index. Prices range from £3.99 to £329.99, with an average of £23.84. 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 nitrate filter →
Seachem nitrate filter - seachem, de*nitrate - £18.99
Tub seachem nitrate • Unique pore structure • Denitrate supports both - Free postage - New and Used
Tub seachem nitrate • Unique pore structure • Denitrate supports both - Free postage - New and Used
Juwel compact filter media pad - compact, - £9.99
Juwel fine filter • Sponge primarily used • Biological filtering your - Free postage - New and Used
Juwel fine filter • Sponge primarily used • Biological filtering your - Free postage - New and Used
Compatible nitrate filter - 4, - £8.49
Komplett kompatibel ersatz • Filter set juwel • Kompakt bioflow 3.0 - Free postage - New and Used
Komplett kompatibel ersatz • Filter set juwel • Kompakt bioflow 3.0 - Free postage - New and Used
Compatible nitrate filter - x, - £4.99
Komplett kompatibel ersatz • Filter set juwel • Kompakt bioflow 3.0 - Free postage - New and Used
Komplett kompatibel ersatz • Filter set juwel • Kompakt bioflow 3.0 - Free postage - New and Used
Nitrate reduction filter - nitrate, - £33.95
Use areas where • Nitrate drinking water • Reduction filter housing - Free postage - New and Used
Use areas where • Nitrate drinking water • Reduction filter housing - Free postage - New and Used
Juwel aquarium fish - aquarium, tank - £71.99
Juwel filter floss • Consists fine residue • Free polyester material - Free postage - New and Used
Juwel filter floss • Consists fine residue • Free polyester material - Free postage - New and Used
Pozzani nitrate no10 - no10, reduction - £15.95
Filterlogic nr600 nitrate • Reduction pre filter • About pozzani pure - Free postage - New and Used
Filterlogic nr600 nitrate • Reduction pre filter • About pozzani pure - Free postage - New and Used
Cheatomorpha cheato chaeto - cheatomorpha, - £11.86
Large handful good • Quality fastgrowing cheato • Taken from sump - Free postage - New and Used
Large handful good • Quality fastgrowing cheato • Taken from sump - Free postage - New and Used
Compatible nitrate filter - 2, - £5.49
Pads suitable juwel • Standard bioflow 6.0 • 100 compatible poly - Free postage - New and Used
Pads suitable juwel • Standard bioflow 6.0 • 100 compatible poly - Free postage - New and Used
Compatible nitrate filter - 4, - £9.99
Kompatible nitrat filterpads • Geeignet juwel jumbo • Bioflow 8.0 filter - Free postage - New and Used
Kompatible nitrat filterpads • Geeignet juwel jumbo • Bioflow 8.0 filter - Free postage - New and Used
Compatible nitrate filter - 8, - £15.99
Pads suitable juwel • Standard bioflow 6.0 • 100 compatible poly - Free postage - New and Used
Pads suitable juwel • Standard bioflow 6.0 • 100 compatible poly - Free postage - New and Used
Seachem denitrate ammonia - seachem, - £8.70
Best results denitrate • Should placed assure • Flow water through - Free postage - New and Used
Best results denitrate • Should placed assure • Flow water through - Free postage - New and Used
Compatible juwel nitrate - compatible, - £13.49
Nitrax nitrate filter • Pad biological foam • Break down nitrates - Free postage - New and Used
Nitrax nitrate filter • Pad biological foam • Break down nitrates - Free postage - New and Used
Resin products filter - resin, - £19.99
Phosphate quickly safely • From aquarium water • Removes nitrates nitrites - Free postage - New and Used
Phosphate quickly safely • From aquarium water • Removes nitrates nitrites - Free postage - New and Used
Juwel aquarium filter - aquarium, - £3.99
Phorax consists aluminium • Mineral which binds • Dissolved phosphate creating - Free postage - New and Used
Phorax consists aluminium • Mineral which binds • Dissolved phosphate creating - Free postage - New and Used
Compatible nitrate filter - x, - £5.99
These filter foams • Are jumbo sized • Filters they will - Free postage - New and Used
These filter foams • Are jumbo sized • Filters they will - Free postage - New and Used
Compatible nitrate filter - 4, - £9.49
Pads suitable juwel • Standard bioflow 6.0 • 100 compatible poly - Free postage - New and Used
Pads suitable juwel • Standard bioflow 6.0 • 100 compatible poly - Free postage - New and Used
Superfish nitrate remover - superfish, - £9.39
Superfish nitrate pad • 45x25cm absorbs nitrite • Utilising natural aerobic - Free postage - New and Used
Superfish nitrate pad • 45x25cm absorbs nitrite • Utilising natural aerobic - Free postage - New and Used
Api aqua detox superclean - aqua-detox, - £4.50
Fits api superclean • 120 directions place • Inside filter such - Free postage - New and Used
Fits api superclean • 120 directions place • Inside filter such - Free postage - New and Used
Nitrate removal high - 1l, - £16.95
Premium quality nitrate • Remover resin quick • Easily removes - Free postage - New and Used
Premium quality nitrate • Remover resin quick • Easily removes - Free postage - New and Used
Superfish filter pad carbon - pad, - £9.85
Your aquarium water • Superfish carbon padthe • Pads are absorb - Free postage - New and Used
Your aquarium water • Superfish carbon padthe • Pads are absorb - Free postage - New and Used
Seachem purigen filter media - seachem, - £329.99
Seachem purigen powerful • Synthetic adsorbent remove • Organic impurities from - Free postage - New and Used
Seachem purigen powerful • Synthetic adsorbent remove • Organic impurities from - Free postage - New and Used
Diy nitrate remover - diy, filter - £9.99
This foam remove • Nitrate from aquarium • Water you are - Free postage - New and Used
This foam remove • Nitrate from aquarium • Water you are - Free postage - New and Used
Compatible nitrate filter - 8, x - £16.99
Kompatible nitrat filterpads • Geeignet juwel jumbo • Bioflow 8.0 filter - Free postage - New and Used
Kompatible nitrat filterpads • Geeignet juwel jumbo • Bioflow 8.0 filter - Free postage - New and Used
Premium ehn 2 ethylhexyl - 2-ehn, | - £18.95
Ehn worldwide standard • Cetane improver raising • Value pump diesel - Free postage - New and Used
Ehn worldwide standard • Cetane improver raising • Value pump diesel - Free postage - New and Used
Seachem purigen aquarium - seachem, - £13.80
Purigen premium synthetic • Adsorbent that unlike • Any other filtration - Free postage - New and Used
Purigen premium synthetic • Adsorbent that unlike • Any other filtration - Free postage - New and Used
Stage fluidised bed filter - stage, - £58.95
Triple fluidised bed • Filter easy use • Setup maintain provides - Free postage - New and Used
Triple fluidised bed • Filter easy use • Setup maintain provides - Free postage - New and Used
Foam pads filter fish tank - pads, - £9.99
Nitrate sponges course • Provides efficient water • Flow less clogging - Free postage - New and Used
Nitrate sponges course • Provides efficient water • Flow less clogging - Free postage - New and Used
Mantis bio filter block - bio-filter, - £25.60
Mantis bio filter • Blocks box such • Have huge wealth - Free postage - New and Used
Mantis bio filter • Blocks box such • Have huge wealth - Free postage - New and Used
Nitrate removal high - nitrate, - £16.95
Nitrate remover resin • Quick easily removes • From water you - Free postage - New and Used
Nitrate remover resin • Quick easily removes • From water you - Free postage - New and Used
Marine aquarium fish - marine, - £14.99
Continuum exxodus nitryx • Marine freshwater nitrate • Remover particularly well - Free postage - New and Used
Continuum exxodus nitryx • Marine freshwater nitrate • Remover particularly well - Free postage - New and Used
Seachem purigen filter - seachem, - £13.99
Seachem purigen powerful • Synthetic adsorbent remove • Organic impurities from - Free postage - New and Used
Seachem purigen powerful • Synthetic adsorbent remove • Organic impurities from - Free postage - New and Used
Seachem aquarium fish tank - aquarium, de - £18.59
Material has high • Surface area supports • Density bacteria live - Free postage - New and Used
Material has high • Surface area supports • Density bacteria live - Free postage - New and Used
Compatible fluval clean - fluval, - £9.99
Compatible range filters • Compact all aquariums • Crystal clear results - Free postage - New and Used
Compatible range filters • Compact all aquariums • Crystal clear results - Free postage - New and Used
Evolution aqua pure aquarium - evolution, - £9.95
Crystal clear healthy • Pure aquarium • Also breaks down - Free postage - New and Used
Crystal clear healthy • Pure aquarium • Also breaks down - Free postage - New and Used
Juwel biopad filter media - juwel, - £7.89
Best way monitor • Effectiveness your filter • Aquarium test kit - Free postage - New and Used
Best way monitor • Effectiveness your filter • Aquarium test kit - Free postage - New and Used
Water filter cartridge - water, - £23.95
600 pint 400 • Resin - Free postage - New and Used
600 pint 400 • Resin - Free postage - New and Used
Genuine juwel nitrax foam - genuine, - £82.56
Juwel nitrax reduces • Nitrate levels your • Aquarium leading considerable - Free postage - New and Used
Juwel nitrax reduces • Nitrate levels your • Aquarium leading considerable - Free postage - New and Used
Ciano aquarium water algae - ciano, - £6.88
Combats eliminates algae • Food aquarium filters • Lighting bubble magus - Free postage - New and Used
Combats eliminates algae • Food aquarium filters • Lighting bubble magus - Free postage - New and Used
Compatible juwel aquarium - compatible, - £20.99
Compatible standard nitrate • Nitrax foam sponge • Juwel filter systems - Free postage - New and Used
Compatible standard nitrate • Nitrax foam sponge • Juwel filter systems - Free postage - New and Used
Seachem purigen filter - purigen, media - £24.95
Purigen premium synthetic • Adsorbent that unlike • Any other filtration - Free postage - New and Used
Purigen premium synthetic • Adsorbent that unlike • Any other filtration - Free postage - New and Used
Fluval nitrite remover filter - fluval, - £12.35
Specifically fluval performance • Canister filter series • 106 107 206 - Free postage - New and Used
Specifically fluval performance • Canister filter series • 106 107 206 - Free postage - New and Used
Easy life fluid filter medium - fluid, - £16.29
This 1000ml bottle • Treats 3000 litres • Harmless filters all - Free postage - New and Used
This 1000ml bottle • Treats 3000 litres • Harmless filters all - Free postage - New and Used
Try this: montipora | aquarium wood | fluval u4 filter | aquael | tropical snails | puffer fish | fish mate feeder | aquarium shipwreck | custom vivarium | aquael light
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Everything you need to know about nitrate filter
Whether you are looking for a brand-new or second-hand nitrate filter, eBay offers one of the largest selections available online. With 48 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 £329.99 — giving you a wide budget spread to work with. The average price of £23.84 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.