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Aquarium heater 300w

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Home / Heating Appliances / Aquarium heater 300w refurbished & used for sale | For Sale UK
Hepo aquarium heater fish - aquarium,

Hepo aquarium heater fish - aquarium,

£15.99
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Hidom submersible tropical - submersible,

Hidom submersible tropical - submersible,

£13.95
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200 300 500w - 200/300/500w, digital

200 300 500w - 200/300/500w, digital

£17.27
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Hepo submersible aquarium - hepo,

Hepo submersible aquarium - hepo,

£14.99
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Submersible aquarium fish tank - aquarium,

Submersible aquarium fish tank - aquarium,

£9.00
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Hidom aquarium heater - hidom,

Hidom aquarium heater - hidom,

£9.65
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Fluval series aquarium - fluval,

Fluval series aquarium - fluval,

£26.99
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Eheim thermocontrol heater - eheim,

Eheim thermocontrol heater - eheim,

£29.99
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Hidom proheat quartz - quartz, aquarium

Hidom proheat quartz - quartz, aquarium

£16.45
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Stainless steel aquarium - stainless,

Stainless steel aquarium - stainless,

£13.99
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Hidom submersible tropical - hidom,

Hidom submersible tropical - hidom,

£13.95
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Submersible aquarium fish tank - aquarium,

Submersible aquarium fish tank - aquarium,

£9.36
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Submersible aquarium tropical - aquarium,

Submersible aquarium tropical - aquarium,

£24.99
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Digital 500w aquarium - to,

Digital 500w aquarium - to,

£27.59
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Hidom proheat quartz aquarium - quartz,

Hidom proheat quartz aquarium - quartz,

£16.45
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Hidom aquarium heater - hidom,

Hidom aquarium heater - hidom,

£11.95
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Fluval t300 aquarium heater - fluval,

Fluval t300 aquarium heater - fluval,

£26.95
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Fish fun heater - fish,

Fish fun heater - fish,

£13.99
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Interpet deltatherm - eu,

Interpet deltatherm - eu,

£10.95
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Submersible aquarium eco - uk,

Submersible aquarium eco - uk,

£10.45
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Hidom aquarium heater 25w 300w - heater, 25w-300w

Hidom aquarium heater 25w 300w - heater, 25w-300w

£9.65
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Eheim thermocontrol aquarium - eheim,

Eheim thermocontrol aquarium - eheim,

£26.99
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Aquael aquarium platinium - aquael,

Aquael aquarium platinium - aquael,

£28.38
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Hepo bundle aquarium heater - -,

Hepo bundle aquarium heater - -,

£15.99
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External heater thermostat for - external,

External heater thermostat for - external,

£32.99
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25w 300w submersible - 25w,

25w 300w submersible - 25w,

£7.37
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Aquarium fish tank - aquarium,

Aquarium fish tank - aquarium,

£5.99
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Superfish aquarium heater - aquarium,

Superfish aquarium heater - aquarium,

£14.95
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300w aquarium fish - 300w, heater

300w aquarium fish - 300w, heater

£13.49
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300w fish tank aquarium - fish,

300w fish tank aquarium - fish,

£13.95
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50w 500w led digital - 50w-500w,

50w 500w led digital - 50w-500w,

£21.02
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Aquarium fish tank heater - tank,

Aquarium fish tank heater - tank,

£17.64
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25w 300w submersible aquarium - submersible,

25w 300w submersible aquarium - submersible,

£9.59
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Submersible aquarium fish tank - submersible,

Submersible aquarium fish tank - submersible,

£14.95
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Fluval heater thermostat lcd - thermostat,

Fluval heater thermostat lcd - thermostat,

£49.99
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200 300 500w led digital - 200/300/500w,

200 300 500w led digital - 200/300/500w,

£19.93
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Fluval t300 digital - t300,

Fluval t300 digital - t300,

£21.50
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Submersible aquarium fish - submersible,

Submersible aquarium fish - submersible,

£8.97
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Hidom submersible aquarium - hidom,

Hidom submersible aquarium - hidom,

£11.45
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Aquarium 50w 500w digital - 50w,

Aquarium 50w 500w digital - 50w,

£17.29
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Oase heat aquarium fish - oase,

Oase heat aquarium fish - oase,

£29.75
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100 200 300w - aquarium, fish

100 200 300w - aquarium, fish

£10.74
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Aquarium heater submersible - aquarium,

Aquarium heater submersible - aquarium,

£16.45
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Aquarium heater submersible - heater,

Aquarium heater submersible - heater,

£10.95
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Eheim jager aquarium - eheim,

Eheim jager aquarium - eheim,

£31.49
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Juwel 200w aquarium heater - aquarium,

Juwel 200w aquarium heater - aquarium,

£30.50
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50w 500w led digital aquarium - led,

50w 500w led digital aquarium - led,

£17.29
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Aquarium glass heater aqua one - heater,

Aquarium glass heater aqua one - heater,

£18.99
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New submersible aquarium eco - aquarium,

New submersible aquarium eco - aquarium,

£10.27
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Interpet deltatherm aquarium - interpet,

Interpet deltatherm aquarium - interpet,

£22.95
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Juwel aquarium heater 100w - juwel,

Juwel aquarium heater 100w - juwel,

£28.53
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Interpet deltatherm aquarium - interpet,

Interpet deltatherm aquarium - interpet,

£1.95
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Aquarium 50w 500w digital - aquarium,

Aquarium 50w 500w digital - aquarium,

£19.31
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200 300 500w led - 200/300/500w,

200 300 500w led - 200/300/500w,

£17.92
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Marina aquarium heater 25w - aquarium,

Marina aquarium heater 25w - aquarium,

£17.60
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Jbl pro temp premium - pro, s

Jbl pro temp premium - pro, s

£29.95
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300w fish tank aquarium heater - 300w,

300w fish tank aquarium heater - 300w,

£11.95
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100w 500w led - led, aquarium

100w 500w led - led, aquarium

£21.92
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Pet friend aquarium fish tank - aquarium,

Pet friend aquarium fish tank - aquarium,

£26.99
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Interpet deltatherm aquarium - interpet,

Interpet deltatherm aquarium - interpet,

£12.99
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Aquarium heater rod - rod, fish

Aquarium heater rod - rod, fish

£8.30
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Best seller submersible - best,

Best seller submersible - best,

£10.52
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200 300 500w led digital - 200/300/500w,

200 300 500w led digital - 200/300/500w,

£20.92
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Superfish pro heater tropical - superfish,

Superfish pro heater tropical - superfish,

£18.95
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Submersible aquarium fish - submersible,

Submersible aquarium fish - submersible,

£8.04
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Hidom stainless steel - stainless,

Hidom stainless steel - stainless,

£14.95
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Fluval heater thermostat lcd - e,

Fluval heater thermostat lcd - e,

£47.99
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100w submersible aquarium fish - submersible,

100w submersible aquarium fish - submersible,

£9.28
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Submersible aquarium fish tank - submersible,

Submersible aquarium fish tank - submersible,

£8.90
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Superfish pro aquarium heater - pro,

Superfish pro aquarium heater - pro,

£15.95
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Kit submersible aquarium - kit, eco

Kit submersible aquarium - kit, eco

£10.99
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Aquarium fish tank heater - fish,

Aquarium fish tank heater - fish,

£6.47
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Submersible aquarium heater - submersible,

Submersible aquarium heater - submersible,

£12.99
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Betta aquarium heater - aquarium,

Betta aquarium heater - aquarium,

£15.75
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Interpet deltatherm aquarium - deltatherm,

Interpet deltatherm aquarium - deltatherm,

£15.08
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Aquael flow inline heater - flow,

Aquael flow inline heater - flow,

£56.95
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Interpet nano stat aquarium - interpet,

Interpet nano stat aquarium - interpet,

£1.95
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50w 500w led digital - 50w-500w, aquarium

50w 500w led digital - 50w-500w, aquarium

£20.66
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Aquarium heater 300w fish - 300w,fish, tank

Aquarium heater 300w fish - 300w,fish, tank

£24.99
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Superfish aquarium heater - superfish,

Superfish aquarium heater - superfish,

£7.99
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300w stainless steel aquarium - 300w,

300w stainless steel aquarium - 300w,

£13.99
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Submersible aquarium heater - submersible,

Submersible aquarium heater - submersible,

£18.00
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50w 500w led digital aquarium - 50w-500w,

50w 500w led digital aquarium - 50w-500w,

£20.86
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Aqua one 300 - aqua,

Aqua one 300 - aqua,

£26.44
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Aquarium heater 300w - aquarium,

Aquarium heater 300w - aquarium,

£9.73
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Aquael inline external fish - aquael,

Aquael inline external fish - aquael,

£54.95
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Hydor eth 300w - external, inline

Hydor eth 300w - external, inline

£26.69
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Juwel aqua heat aquarium - aqua,

Juwel aqua heat aquarium - aqua,

£31.99
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Aquarium start heater - start,

Aquarium start heater - start,

£10.80
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Delta therm 300w - therm,

Delta therm 300w - therm,

£12.94
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Betta compact aquarium heater - aquarium,

Betta compact aquarium heater - aquarium,

£14.69
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Betta thermal compact heater - compact,

Betta thermal compact heater - compact,

£12.99
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Hagen marina submersible - hagen,

Hagen marina submersible - hagen,

£14.95
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Aquarium fish tank heater - fish,

Aquarium fish tank heater - fish,

£5.68
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300w 500w inline - inline, aquarium

300w 500w inline - inline, aquarium

£32.34
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Betta choice premium - premium, digital

Betta choice premium - premium, digital

£23.79
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📊96 listings · from £1.95 · avg £18.27
⚠️ These listings were last updated more than 19 days ago. Search for fresh listings

Browse 96 aquarium heater 300w listings currently in our index. Prices range from £1.95 to £56.95, with an average of £18.27. 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 aquarium heater 300w →

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Everything you need to know about aquarium heater 300w

Whether you are looking for a brand-new or second-hand aquarium heater 300w, 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 £1.95, while premium listings can reach £56.95 — giving you a wide budget spread to work with. The average price of £18.27 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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