For Sale UK

Aquarium heater 300w

4

Aquarium heater 300w for sale on Ireland's largest auction and classifieds sites

Home / eBay / Aquarium heater 300w refurbished & used for sale | For Sale UK
Hidom submersible tropical - hidom,

Hidom submersible tropical - hidom,

£13.95 · Buy It Now

» View details on eBay #sponsored
Hidom proheat quartz aquarium - hidom,

Hidom proheat quartz aquarium - hidom,

£16.45 · Buy It Now

» View details on eBay #sponsored
Hidom proheat quartz aquarium - proheat,

Hidom proheat quartz aquarium - proheat,

£16.45 · Buy It Now

» View details on eBay #sponsored
300w aquarium fish - tank, heater

300w aquarium fish - tank, heater

£13.49 · Buy It Now

» View details on eBay #sponsored
300w aquarium heater fish tank - heater,

300w aquarium heater fish tank - heater,

£9.95 · Buy It Now

» View details on eBay #sponsored
Fluval aquarium heater - aquarium,

Fluval aquarium heater - aquarium,

£26.99 · Buy It Now

» View details on eBay #sponsored
Hidom aquarium heater - hidom,

Hidom aquarium heater - hidom,

£9.65 · Buy It Now

» View details on eBay #sponsored
Hepo submersible aquarium fish - hepo,

Hepo submersible aquarium fish - hepo,

£9.99 · Buy It Now

» View details on eBay #sponsored
Hidom submersible tropical - submersible,

Hidom submersible tropical - submersible,

£13.95 · Buy It Now

» View details on eBay #sponsored
Interpet deltatherm - interpet, eu

Interpet deltatherm - interpet, eu

£10.95 · Buy It Now

» View details on eBay #sponsored
Eheim thermocontrol heater - eheim,

Eheim thermocontrol heater - eheim,

£29.99 · Buy It Now

» View details on eBay #sponsored
Aquarium heater submersible - aquarium,

Aquarium heater submersible - aquarium,

£16.45 · Buy It Now

» View details on eBay #sponsored
Fluval series aquarium - t,

Fluval series aquarium - t,

£26.99 · Buy It Now

» View details on eBay #sponsored
External heater thermostat for - external,

External heater thermostat for - external,

£32.99 · Buy It Now

» View details on eBay #sponsored
Fluval heater thermostat lcd - fluval,

Fluval heater thermostat lcd - fluval,

£49.99 · Buy It Now

» View details on eBay #sponsored
Submersible aquarium tropical - submersible,

Submersible aquarium tropical - submersible,

£24.99 · Buy It Now

» View details on eBay #sponsored
Fish fun heater thermostat - heater,

Fish fun heater thermostat - heater,

£13.99 · Buy It Now

» View details on eBay #sponsored
Aquarium fish tank heater - fish,

Aquarium fish tank heater - fish,

£5.99 · Buy It Now

» View details on eBay #sponsored
Hepo bundle aquarium heater - hepo,

Hepo bundle aquarium heater - hepo,

£9.99 · Buy It Now

» View details on eBay #sponsored
Led digital aquarium - led,

Led digital aquarium - led,

£20.64 · Buy It Now

» View details on eBay #sponsored
Submersible aquarium heater - aquarium,

Submersible aquarium heater - aquarium,

£13.45 · Buy It Now

» View details on eBay #sponsored
Interpet deltatherm aquarium - deltatherm,

Interpet deltatherm aquarium - deltatherm,

£1.95 · Buy It Now

» View details on eBay #sponsored
Stainless steel aquarium - stainless,

Stainless steel aquarium - stainless,

£13.99 · Buy It Now

» View details on eBay #sponsored
Juwel aquarium heater 100w - juwel,

Juwel aquarium heater 100w - juwel,

£28.53 · Buy It Now

» View details on eBay #sponsored
Marina aquarium heater 25w 50w - heater,

Marina aquarium heater 25w 50w - heater,

£17.60 · Buy It Now

» View details on eBay #sponsored
Hidom quartz submersible - hidom,

Hidom quartz submersible - hidom,

£16.45 · Buy It Now

» View details on eBay #sponsored
Aquarium submersible heater - aquarium,

Aquarium submersible heater - aquarium,

£23.85 · Buy It Now

» View details on eBay #sponsored
Hydor eth 300w line - eth, in-line

Hydor eth 300w line - eth, in-line

£31.90 · Buy It Now

» View details on eBay #sponsored
Hidom stainless steel aquarium - hidom,

Hidom stainless steel aquarium - hidom,

£14.95 · Buy It Now

» View details on eBay #sponsored
Jbl protemp 300w - jbl,

Jbl protemp 300w - jbl,

£41.67 · Buy It Now

» View details on eBay #sponsored
Superfish pro aquarium heater - superfish,

Superfish pro aquarium heater - superfish,

£15.95 · Buy It Now

» View details on eBay #sponsored
Aquarium fish tank submersible - fish,

Aquarium fish tank submersible - fish,

£7.99 · Buy It Now

» View details on eBay #sponsored
Kit submersible aquarium eco - kit,

Kit submersible aquarium eco - kit,

£9.12 · Buy It Now

» View details on eBay #sponsored
Fluval series aquarium - fluval,

Fluval series aquarium - fluval,

£26.99 · Buy It Now

» View details on eBay #sponsored
200 300 500w - led, digital

200 300 500w - led, digital

£20.94 · Buy It Now

» View details on eBay #sponsored
Superfish aquarium heater - superfish,

Superfish aquarium heater - superfish,

£15.49 · Buy It Now

» View details on eBay #sponsored
Eheim jager aquarium - eheim,

Eheim jager aquarium - eheim,

£31.49 · Buy It Now

» View details on eBay #sponsored
Fluval m300 300w - 300w, aquarium

Fluval m300 300w - 300w, aquarium

£29.82 · Buy It Now

» View details on eBay #sponsored
Submersible aquarium heater - aquarium,

Submersible aquarium heater - aquarium,

£12.46 · Buy It Now

» View details on eBay #sponsored
Submersible aquarium heater - submersible,

Submersible aquarium heater - submersible,

£15.05 · Buy It Now

» View details on eBay #sponsored
300w 500w inline - 300w/500w, aquarium

300w 500w inline - 300w/500w, aquarium

£32.34 · Buy It Now

» View details on eBay #sponsored
Submersible aquarium heater - submersible,

Submersible aquarium heater - submersible,

£10.75 · Buy It Now

» View details on eBay #sponsored
Fish tank heater 300w - fish,

Fish tank heater 300w - fish,

£13.95 · Buy It Now

» View details on eBay #sponsored
25w 300w submersible - 25w,

25w 300w submersible - 25w,

£8.01 · Buy It Now

» View details on eBay #sponsored
Interpet deltatherm aquarium - interpet,

Interpet deltatherm aquarium - interpet,

£18.90 · Buy It Now

» View details on eBay #sponsored
25w 300w submersible aquarium - 25w-300w,

25w 300w submersible aquarium - 25w-300w,

£8.09 · Buy It Now

» View details on eBay #sponsored
Aquarium marine fish - aquarium,

Aquarium marine fish - aquarium,

£9.58 · Buy It Now

» View details on eBay #sponsored
50w 100w aquarium - aquarium, fish

50w 100w aquarium - aquarium, fish

£9.82 · Buy It Now

» View details on eBay #sponsored
Oase heat aquarium fish - aquarium,

Oase heat aquarium fish - aquarium,

£29.75 · Buy It Now

» View details on eBay #sponsored
Hitop 608 submersible - hitop, hp-608

Hitop 608 submersible - hitop, hp-608

£9.73 · Buy It Now

» View details on eBay #sponsored
Juwel aqua heat - heat, aquarium

Juwel aqua heat - heat, aquarium

£33.99 · Buy It Now

» View details on eBay #sponsored
Aquarium heater submersible - aquarium,

Aquarium heater submersible - aquarium,

£10.95 · Buy It Now

» View details on eBay #sponsored
Aquarium heater rod - aquarium,

Aquarium heater rod - aquarium,

£8.30 · Buy It Now

» View details on eBay #sponsored
Hagen marina submersible - marina,

Hagen marina submersible - marina,

£14.95 · Buy It Now

» View details on eBay #sponsored
Aquarium fish tank - aquarium, heater

Aquarium fish tank - aquarium, heater

£5.99 · Buy It Now

» View details on eBay #sponsored
Submersible aquarium heater - aquarium,

Submersible aquarium heater - aquarium,

£10.94 · Buy It Now

» View details on eBay #sponsored
Superfish pro heater 300w - superfish,

Superfish pro heater 300w - superfish,

£15.89 · Buy It Now

» View details on eBay #sponsored
200 300 500w led digital - led,

200 300 500w led digital - led,

£17.92 · Buy It Now

» View details on eBay #sponsored
Aquarium heater 300w - aquarium, fish

Aquarium heater 300w - aquarium, fish

£12.93 · Buy It Now

» View details on eBay #sponsored
Juwel aqua heat - juwel,

Juwel aqua heat - juwel,

£31.95 · Buy It Now

» View details on eBay #sponsored
Eheim thermocontrol heater - eheim,

Eheim thermocontrol heater - eheim,

£41.75 · Buy It Now

» View details on eBay #sponsored
Fluval heater 50w 100w - heater,

Fluval heater 50w 100w - heater,

£45.99 · Buy It Now

» View details on eBay #sponsored
Hidom submersible aquarium - hidom,

Hidom submersible aquarium - hidom,

£11.45 · Buy It Now

» View details on eBay #sponsored
Hidom aquarium heater - hidom,

Hidom aquarium heater - hidom,

£10.95 · Buy It Now

» View details on eBay #sponsored
Juwel automatic heater - automatic,

Juwel automatic heater - automatic,

£34.05 · Buy It Now

» View details on eBay #sponsored
Aquarium glass heater - aqua, one

Aquarium glass heater - aqua, one

£18.99 · Buy It Now

» View details on eBay #sponsored
Betta thermal compact - betta, heater

Betta thermal compact - betta, heater

£13.99 · Buy It Now

» View details on eBay #sponsored
Best seller submersible - seller,

Best seller submersible - seller,

£10.52 · Buy It Now

» View details on eBay #sponsored
Interpet deltatherm aquarium - interpet,

Interpet deltatherm aquarium - interpet,

£22.95 · Buy It Now

» View details on eBay #sponsored
Fluval t300 aquarium heater - aquarium,

Fluval t300 aquarium heater - aquarium,

£28.95 · Buy It Now

» View details on eBay #sponsored
100w aquarium marine fish - 100w,

100w aquarium marine fish - 100w,

£10.20 · Buy It Now

» View details on eBay #sponsored
Aquarium heater fish - heater, tank

Aquarium heater fish - heater, tank

£9.99 · Buy It Now

» View details on eBay #sponsored
100 200 300w aquarium - aquarium, fish

100 200 300w aquarium - aquarium, fish

£10.58 · Buy It Now

» View details on eBay #sponsored
Eheim thermocontrol heater - eheim,

Eheim thermocontrol heater - eheim,

£29.88 · Buy It Now

» View details on eBay #sponsored
Aquarium heater hidom - heater,

Aquarium heater hidom - heater,

£11.43 · Buy It Now

» View details on eBay #sponsored
Aquarium marine fish - aquarium,

Aquarium marine fish - aquarium,

£9.60 · Buy It Now

» View details on eBay #sponsored
New submersible aquarium eco - new,

New submersible aquarium eco - new,

£9.86 · Buy It Now

» View details on eBay #sponsored
Submersible aquarium fish tank - submersible,

Submersible aquarium fish tank - submersible,

£14.95 · Buy It Now

» View details on eBay #sponsored
Betta compact aquarium heater - compact,

Betta compact aquarium heater - compact,

£15.75 · Buy It Now

» View details on eBay #sponsored
Eheim thermocontrol heater - eheim,

Eheim thermocontrol heater - eheim,

£29.99 · Buy It Now

» View details on eBay #sponsored
Fluval heater thermostat lcd - fluval,

Fluval heater thermostat lcd - fluval,

£47.99 · Buy It Now

» View details on eBay #sponsored
Fluval series aquarium - fluval, e-series

Fluval series aquarium - fluval, e-series

£44.89 · Buy It Now

» View details on eBay #sponsored
Aquael inline external fish - aquael,

Aquael inline external fish - aquael,

£54.95 · Buy It Now

» View details on eBay #sponsored
Sicce scuba contactless - scuba,

Sicce scuba contactless - scuba,

£44.99 · Buy It Now

» View details on eBay #sponsored
Hygger fish tank - fish, heater,

Hygger fish tank - fish, heater,

£49.60 · Buy It Now

» View details on eBay #sponsored
Juwel 200w aquarium heater - aquarium,

Juwel 200w aquarium heater - aquarium,

£30.50 · Buy It Now

» View details on eBay #sponsored
Titanium heater elitech - titanium,

Titanium heater elitech - titanium,

£61.99 · Buy It Now

» View details on eBay #sponsored
Eheim thermocontrol aquarium - eheim,

Eheim thermocontrol aquarium - eheim,

£29.99 · Buy It Now

» View details on eBay #sponsored
Hygger fish tank heater - hygger, heater,

Hygger fish tank heater - hygger, heater,

£41.52 · Buy It Now

» View details on eBay #sponsored
Aquael aquarium platinium - aquarium,

Aquael aquarium platinium - aquarium,

£28.38 · Buy It Now

» View details on eBay #sponsored
Aquael flow inline heater - aquael,

Aquael flow inline heater - aquael,

£56.95 · Buy It Now

» View details on eBay #sponsored
Superfish pro heater - superfish,

Superfish pro heater - superfish,

£15.85 · Buy It Now

» View details on eBay #sponsored
Aquarium heater fish tank - aquarium,

Aquarium heater fish tank - aquarium,

£10.86 · Buy It Now

» View details on eBay #sponsored
Interpet deltatherm 300w - interpet,

Interpet deltatherm 300w - interpet,

£20.99 · Buy It Now

» View details on eBay #sponsored
Submersible aquarium heater - submersible,

Submersible aquarium heater - submersible,

£12.14 · Buy It Now

» View details on eBay #sponsored
Submersible aquarium heater - aquarium,

Submersible aquarium heater - aquarium,

£12.99 · Buy It Now

» View details on eBay #sponsored

Looking for more aquarium heater 300w?

Search eBay live — fresh results filtered for the best value, updated every hour.

🔍 Search live deals
📊96 listings · from £1.95 · avg £21.19

Browse 96 aquarium heater 300w listings currently in our index. Prices range from £1.95 to £61.99, with an average of £21.19. 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 →

Try this: arklow plates | auto harp | ambrosio | arena | antique pewter | audison | barkcloth | beastmaker | bentley mascot | besson euphonium

Shop by budget

< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

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 £61.99 — giving you a wide budget spread to work with. The average price of £21.19 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.

🔍 aquarium heater 300w Search live on eBay