FiltoSmart Thermo 300 External Aquarium Heater - Oase

Brand Oase
New

In stock

Smart shoppers OnBuy it!

  • Earn Cashback on every purchase – spend it instantly on your next order
  • Free delivery – on millions of items across the site
  • Customers love us – 138,000 Trustpilot reviews and an 'Excellent' rating

See full product description & details

£120.99
FREE Delivery
1% Earn £1.21 instantly Learn More
Add to Basket

Interest-free payment options available

Sold by Aquacadabra
Visit store
13k+ orders

See full product description & details

Delivery: Standard (Free) | Sat 7th - Mon 9th Nov

There is 1 other seller

Returns: 30 days

180-day payment protection

Add to Basket

You might also like

(100 Watt) Oase HeatUp Aquarium HeaterMultiple Options Available
(100 Watt) Oase HeatUp Aquarium Heater£23.75FREE Delivery
(200W) Superfish Pro Aquarium HeatersMultiple Options Available
(200W) Superfish Pro Aquarium Heaters£17.95FREE Delivery
(300w, Black) Juwel Automatic Aquarium HeaterMultiple Options Available
(300w, Black) Juwel Automatic Aquarium Heater£34.50FREE Delivery
(25 Watt) Interpet Aquatherm Aquarium HeaterMultiple Options Available
(25 Watt) Interpet Aquatherm Aquarium Heater£15.95FREE Delivery
(50 Watt) Oase HeatUp Aquarium HeaterMultiple Options Available
(50 Watt) Oase HeatUp Aquarium Heater£19.99FREE Delivery
(100w) Fluval Aquarium Submersible HeaterMultiple Options Available
(100w) Fluval Aquarium Submersible Heater
£69.78FREE Delivery
(200 Watt) Interpet Aquatherm Aquarium HeaterMultiple Options Available
(200 Watt) Interpet Aquatherm Aquarium Heater£16.95FREE Delivery
(150 Watt) Oase HeatUp Aquarium HeaterMultiple Options Available
(150 Watt) Oase HeatUp Aquarium Heater£22.90FREE Delivery
(200w, Black) Juwel Automatic Aquarium HeaterMultiple Options Available
(200w, Black) Juwel Automatic Aquarium Heater£31.99FREE Delivery
Deltatherm Heater 100w
Deltatherm Heater 100w£22.95FREE Delivery
(100 Watt) Interpet Aquatherm Aquarium HeaterMultiple Options Available
(100 Watt) Interpet Aquatherm Aquarium Heater
£16.75FREE Delivery
Description & Details

Summary

  • Compact External Aquarium Filters
  • Intergrated 300 Watt Heatup heater- helping to streamline the look of the equipment in the aquarium.
  • Automated shut off to prevent water loss when cleaning
  • Complete set up-includes media, hose, adaptor, flow intake and outflow tubes and water diffuser
  • For Tanks up to 300 Litres

FiltoSmart Thermo 300 External Aquarium Heater - Oase Description

FiltoSmart Thermo External Aquarium Filters, new systems direct from Oase. The FiltoSmart Thermo External Aquarium Filters are small and compact filters designed for the smaller to medium sized tanks while creating essential space saving solutions. They help to create crystal clear and healthy water through multi-stage mechanical and biological filtration along with a large filter surface area in a small compact filter unit. Working hard to keep the water clean and healthy for the life inside by using the large surface area and multi-stage filtration system, The 300 FiltoSmart has a selection of benefits in a compact designed filter case. Each filter is fitted with an automated shut off feature that prevents undesired water from escaping when cleaning the filter. Cleaning is easy by way of the EasyClick opening mechanism located on the sides of the filter. The water flow rate can be easily adjusted on the inflow and outflow adaptor. The base of the filter has been designed to be secure and stable preventing it from falling over. The 200 and 300 models also come with a convenient carrying handle. Each FiltoSmart unit is equipped with a preinstalled Heat Up heater, helping to keep your tank streamlined of equipment. The heaters can be easily adjusted for optimum temperature. All FiltoSmarts have a 1.5m power lead, are suitable for Fresh and Salt Water tanks and come with a 3 year guarantee For Tanks up to: 300 Litres (66 Gallons) Max Flow Rate: 1000 LPH (220 GPH) Max Head Height: 1.3m Connection for Hoses: 17mm Dimensions (LxWxH): 462 x 290 x 246mm

Details

OPC PB5BQ58
Brand
Oase
Codes 4010052426976 (EAN)
MPN 42697
Rank In demand

Product Data

Product Height24.6
Product Depth46.2

Compare Sellers for FiltoSmart Thermo 300 External Aquarium Heater - Oase

  • New from £120.95
Seller Ratings Warranty Returns Price Delivery Total Quantity
(859 reviews)
-
30 Days
Free Returns No
£120.99
+Fast & Free Delivery
Est. Delivery: 7th-9th Nov
£120.99
Add To Basket
(215 reviews)
36 months
30 Days
Free Returns No
£120.95
+Fast & Free Delivery
Est. Delivery: 7th-9th Nov
£120.95
Add To Basket

Reviews of FiltoSmart Thermo 300 External Aquarium Heater - Oase

All OnBuy Reviews are Verified Reviews

Overall Rating:
5
1 Reviews
4
0 Reviews
3
0 Reviews
2
0 Reviews
1
0 Reviews
Highest Rated Review
5/5
L. Bourke
Posted 21/07/2026
Sold By Aquacadabra
Product is exactly what I wanted fits my unit perfectly, with the build in heater it saves space in the tank and gives my fish tank a more natural look. Very very pleased.
Filter Reviews
5/5
L. Bourke
Reviewed from GB
Posted 21/07/2026
Sold By Aquacadabra
Product is exactly what I wanted fits my unit perfectly, with the build in heater it saves space in the tank and gives my fish tank a more natural look. Very very pleased.

Earn as you shop with instant Cashback on everything.

No catch, no cost

  • Paid into your OnBuy account
  • Spend it on your next purchase
  • Save it or withdraw it

Become a Cashback VIP

Just 1 purchase unlocks bigger deals & rates

Wait! You've left
something behind

You'll only get instant Cashback at OnBuy! Enter your email below and we'll send you a copy of your basket to save you time later.

By entering your email address, you'll automatically be added to our database, where you can enjoy personalised Cashback offers and early access to our best deals. You can opt out of our emails at any time and we'll never share your details with anyone. Check our Privacy Policy and T&Cs to find out more.

Before you go...
Remember, you'll only get instant Cashback on everything at OnBuy!

Want access to personalised offers and the highest Cashback rates? Sign up to our emails below.

You can opt out of our emails at any time and we'll never share your details with anyone. Check our Privacy Policy and T&Cs to find out more.

This page has expired.

Please refresh the page to continue shopping.

Refresh and continue