Fluval heaters
Fluval heaters for sale on Ireland's largest auction and classifieds sites
Fluval aquarium heater - t, - £24.99
Suitable aquariums 300l • Available five sizes • These heaters cater - Free postage - New and Used
Suitable aquariums 300l • Available five sizes • These heaters cater - Free postage - New and Used
Fluval heater thermostat lcd - thermostat, - £49.99
Fluval series electronic • Fish tank heaters • 50w aquariums 60l - Free postage - New and Used
Fluval series electronic • Fish tank heaters • 50w aquariums 60l - Free postage - New and Used
Fluval series submersible - fluval, - £17.59
Pre set heater • 10w suitable 10l • 13.5 1.5cm fluval - Free postage - New and Used
Pre set heater • 10w suitable 10l • 13.5 1.5cm fluval - Free postage - New and Used
Fluval series aquarium - t, - £26.99
360 indicator light • Ring displays heat • Mode clearly from - Free postage - New and Used
360 indicator light • Ring displays heat • Mode clearly from - Free postage - New and Used
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Fluval series aquarium - t-series, - £25.99
360 indicator light • Ring displays heat • Mode clearly from - Free postage - New and Used
360 indicator light • Ring displays heat • Mode clearly from - Free postage - New and Used
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48 listings · from £8.66 · avg £26.48
⚠️ These listings were last updated more than 16 days ago.
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Browse 48 fluval heaters listings currently in our index. Prices range from £8.66 to £49.99, with an average of £26.48. 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 heaters →
Fluval pre set heaters p10 - heaters, p25 - £19.75
Fluval series heaters • Are pre set • Maintain consistent temperature - Free postage - New and Used
Fluval series heaters • Are pre set • Maintain consistent temperature - Free postage - New and Used
Fluval t300 fully - fluval, electronic - £24.89
300 watt output • Advanced electronic construction • Ensures stable water - Free postage - New and Used
300 watt output • Advanced electronic construction • Ensures stable water - Free postage - New and Used
Fluval 50w submersible - fluval, - £19.99
Fluval series heaters • Include exclusive mirror • Technology that reflects - Free postage - New and Used
Fluval series heaters • Include exclusive mirror • Technology that reflects - Free postage - New and Used
Fluval e300 advanced - fluval, - £29.99
- Free postage - New and Used
- Free postage - New and Used
Fluval heater thermostat - fluval, - £47.99
Screen colour changes • Indicate safe temperature • Zone accuracy safety - Free postage - New and Used
Screen colour changes • Indicate safe temperature • Zone accuracy safety - Free postage - New and Used
Fluval aquarium heater - fluval, t - £16.99
Fluval series fully • Electronic aquarium heater • T50 suitable aquariums - Free postage - New and Used
Fluval series fully • Electronic aquarium heater • T50 suitable aquariums - Free postage - New and Used
Fluval m150 submersible fish - fluval, - £20.99
Use freshwater saltwater • Aquariums durable mirrored • Finish seamlessly blends - Free postage - New and Used
Use freshwater saltwater • Aquariums durable mirrored • Finish seamlessly blends - Free postage - New and Used
Fluval series submersible - fluval, - £9.99
P10 10w heater • Ideal aquariums litres • Gallons you want - Free postage - New and Used
P10 10w heater • Ideal aquariums litres • Gallons you want - Free postage - New and Used
Fluval t300 digital - digital, aquarium - £26.70
Fluval t300 digital • Aquarium heater 300w • 150 300l tank - Free postage - New and Used
Fluval t300 digital • Aquarium heater 300w • 150 300l tank - Free postage - New and Used
Fluval heater thermostat - fluval, - £49.99
Watt heater that • Fluval advanced electronic • 300w e300 300 - Free postage - New and Used
Watt heater that • Fluval advanced electronic • 300w e300 300 - Free postage - New and Used
Fluval t300 fully electronic - fluval, - £23.99
300 watt output • Advanced electronic construction • Ensures stable water - Free postage - New and Used
300 watt output • Advanced electronic construction • Ensures stable water - Free postage - New and Used
Fluval premium heater - fluval, m - £21.99
Heater also includes • Exclusive mirror technology • That reflects colours - Free postage - New and Used
Heater also includes • Exclusive mirror technology • That reflects colours - Free postage - New and Used
Fluval t300 aquarium - fluval, - £28.95
Fluval t300 digital • Aquarium heater 360 • Indicator light ring - Free postage - New and Used
Fluval t300 digital • Aquarium heater 360 • Indicator light ring - Free postage - New and Used
Fluval aquarium heater - t, - £22.99
360 indicator light • Ring displays heat • Mode clearly from - Free postage - New and Used
360 indicator light • Ring displays heat • Mode clearly from - Free postage - New and Used
Fluval m150 submersible 150w - fluval, - £12.94
- Free postage - New and Used
- Free postage - New and Used
Fluval aquarium heaters - fluval, - £49.99
Fluval series advanced • Key features temperature • Readout will change - Free postage - New and Used
Fluval series advanced • Key features temperature • Readout will change - Free postage - New and Used
Fluval submersible aquarium - fluval, - £18.49
25w suitable 25l • Tanks 10w • 10l - Free postage - New and Used
25w suitable 25l • Tanks 10w • 10l - Free postage - New and Used
Fluval heater thermostat lcd - heater, - £42.99
Fluval advanced electronic • Heater 200 box • Open tatty will - Free postage - New and Used
Fluval advanced electronic • Heater 200 box • Open tatty will - Free postage - New and Used
Fluval aquarium heater - fluval, - £29.99
Fluval series fully • Electronic aquarium heater • Blue light when - Free postage - New and Used
Fluval series fully • Electronic aquarium heater • Blue light when - Free postage - New and Used
Fluval 100watt heater - fluval, - £8.66
Fluval 100watt heater • Good condition please • Other listings any - Free postage - New and Used
Fluval 100watt heater • Good condition please • Other listings any - Free postage - New and Used
Fluval aquarium heater fully - t, - £32.09
Watt heater aquariums • Fluval series aquarium • Use only t50 - Free postage - New and Used
Watt heater aquariums • Fluval series aquarium • Use only t50 - Free postage - New and Used
Fluval aquarium heater - fluval, - £22.35
New bit tatty • Box clear 300 • Watt heater - Free postage - New and Used
New bit tatty • Box clear 300 • Watt heater - Free postage - New and Used
Fluval series heater p10 - fluval, - £18.43
Fluval series heaters • Are pre set • Maintain consistent temperature - Free postage - New and Used
Fluval series heaters • Are pre set • Maintain consistent temperature - Free postage - New and Used
Fluval heater thermostat lcd - heater, - £39.99
Fluval advanced electronic • Heater 300w suitable • Freshwater saltwater aquariums - Free postage - New and Used
Fluval advanced electronic • Heater 300w suitable • Freshwater saltwater aquariums - Free postage - New and Used
Fluval t50 heater 50watt - fluval, - £16.15
Used good condition • Please see other • Listings any questions - Free postage - New and Used
Used good condition • Please see other • Listings any questions - Free postage - New and Used
Fluval hagen 100w - m, - £21.50
Ensure your tropical • Fish tank maintains • Consistent temperature fluval - Free postage - New and Used
Ensure your tropical • Fish tank maintains • Consistent temperature fluval - Free postage - New and Used
Fluval m150 heater - fluval, - £29.82
Brand new sealed • Fluval m150 heater • Tank but not - Free postage - New and Used
Brand new sealed • Fluval m150 heater • Tank but not - Free postage - New and Used
Fluval m50 submersible - submersible, fish - £20.49
Use freshwater saltwater • Aquariums watt heater • Gallons durable mirrored - Free postage - New and Used
Use freshwater saltwater • Aquariums watt heater • Gallons durable mirrored - Free postage - New and Used
Fluval t150 aquarium - t150, - £22.49
150w electronic heater • Freshwater aquariums suitable • Aquarium gallons such - Free postage - New and Used
150w electronic heater • Freshwater aquariums suitable • Aquarium gallons such - Free postage - New and Used
Fluval series submersible - fluval, - £17.99
25w heater 10w • Integrated led running • Lamp illuminates indicate - Free postage - New and Used
25w heater 10w • Integrated led running • Lamp illuminates indicate - Free postage - New and Used
Fluval aquarium heater - aquarium, - £19.99
Fluval series fully • Electronic aquarium heater • T50 suitable aquariums - Free postage - New and Used
Fluval series fully • Electronic aquarium heater • T50 suitable aquariums - Free postage - New and Used
Fluval heater thermostat lcd - e, - £44.99
Integrated thermostat dual • Temperature sensors clear • Lcd display continuously - Free postage - New and Used
Integrated thermostat dual • Temperature sensors clear • Lcd display continuously - Free postage - New and Used
Fluval t200 aquarium - t200, heater - £27.49
Fluval t200 digital • Aquarium heater 360 • Indicator light ring - Free postage - New and Used
Fluval t200 digital • Aquarium heater 360 • Indicator light ring - Free postage - New and Used
Fluval m50 submersible fish - submersible, - £25.15
Aquariums gallons durable • Mirrored finish seamlessly • Blends heater into - Free postage - New and Used
Aquariums gallons durable • Mirrored finish seamlessly • Blends heater into - Free postage - New and Used
Fluval m150 150w aquarium - m150, - £26.70
Ensure your aquatic • Environment comfortably warm • Fluval m150 aquarium - Free postage - New and Used
Ensure your aquatic • Environment comfortably warm • Fluval m150 aquarium - Free postage - New and Used
Fluval series aquarium - fluval, - £45.99
Thee100 100 watt • Heater that ideal • Aquariums 120 gal - Free postage - New and Used
Thee100 100 watt • Heater that ideal • Aquariums 120 gal - Free postage - New and Used
Fluval m50 aquarium - fluval, heater - £10.80
Fluval premium aquarium • Heater m50 50w • Used weeks only - Free postage - New and Used
Fluval premium aquarium • Heater m50 50w • Used weeks only - Free postage - New and Used
Fluval heater 50w - heater, 200w - £45.99
Watt heater that • Fluval advanced electronic • 300w e300 300 - Free postage - New and Used
Watt heater that • Fluval advanced electronic • 300w e300 300 - Free postage - New and Used
Fluval t100 aquarium heater - aquarium, - £26.79
Fluval t100 digital • Aquarium heater 360 • Indicator light ring - Free postage - New and Used
Fluval t100 digital • Aquarium heater 360 • Indicator light ring - Free postage - New and Used
Fluval series aquarium - t, - £29.99
Whether nature aquarium • Fish are sensitive • Temperature fluctuations can - Free postage - New and Used
Whether nature aquarium • Fish are sensitive • Temperature fluctuations can - Free postage - New and Used
Fluval m50 premium - m, - £10.79
Full working order • But temperature numbers • Top have worn - Free postage - New and Used
Full working order • But temperature numbers • Top have worn - Free postage - New and Used
Aquarium tank heaters - tank, fluval - £21.99
Pre set heater • 10w fluval p25 • 25w available sizes - Free postage - New and Used
Pre set heater • 10w fluval p25 • 25w available sizes - Free postage - New and Used
Fluval m50 tropical - fluval, - £19.39
Pond plant basket • Function heater can • Easily detected way - Free postage - New and Used
Pond plant basket • Function heater can • Easily detected way - Free postage - New and Used
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Everything you need to know about fluval heaters
Whether you are looking for a brand-new or second-hand fluval heaters, 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 £8.66, while premium listings can reach £49.99 — giving you a wide budget spread to work with. The average price of £26.48 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.