---
product_id: 56861755
title: "OASE FiltoSmart Thermo 300 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 300 L, including Heater HeatUp 300 W"
brand: "oase"
price: "VT104091"
currency: VUV
in_stock: true
reviews_count: 9
category: "Oase"
url: https://www.desertcart.vu/products/56861755-oase-filtosmart-thermo-300-aquarium-filter-external-aquarium-filter-freshwater
store_origin: VU
region: Vanuatu
---

# Supports up to 300L aquariums Whisper-quiet pump 300W adjustable heater OASE FiltoSmart Thermo 300 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 300 L, including Heater HeatUp 300 W

**Brand:** oase
**Price:** VT104091
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your aquarium game with smart filtration and precise heating!

## Quick Answers

- **What is this?** OASE FiltoSmart Thermo 300 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 300 L, including Heater HeatUp 300 W by oase
- **How much does it cost?** VT104091 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/56861755-oase-filtosmart-thermo-300-aquarium-filter-external-aquarium-filter-freshwater)

## Best For

- oase enthusiasts

## Why This Product

- Trusted oase brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tailored Water Flow:** Adjustable inlet and outlet adapters let you fine-tune circulation for optimal tank health.
- • **Compact Yet Powerful:** Large filter surface area in a sleek design fits seamlessly into any setup.
- • **Effortless Maintenance:** Easy-click opening and self-venting function make cleaning a breeze—no spills, no stress.
- • **Whisper-Quiet Operation:** Energy-efficient pump runs silently, so your workspace stays peaceful and focused.
- • **Precision Temperature Control:** Customizable HeatUp 300W heater keeps your aquatic environment perfectly balanced.

## Overview

The OASE FiltoSmart Thermo 300 is a premium external aquarium filter designed for freshwater and marine tanks up to 300 liters. Featuring an integrated 300W adjustable heater, a large compact filter surface, and a whisper-quiet, energy-efficient pump, it ensures crystal-clear water and stable temperatures. Its user-friendly design includes easy maintenance with a self-venting system and adjustable water flow, making it the ideal choice for millennial professionals seeking reliable, hassle-free aquatic care.

## Description

Free delivery and returns on eligible orders. Buy OASE FiltoSmart Thermo 300 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 300 L, including Heater HeatUp 300 W at desertcart UK.

Review: Worth the money .! - Brilliant filter . Good solid build , nice materials . Comes with all sponges and media . Keeps the water crystal clear , gives a nice flow to the tank . Built in thermostat with clear reading .Runs quietly and very easy to clean. Best filter out there for the price .!
Review: Nice bit of kit very quiet - It is a good product keeps the tanks Very clean it is a bit of a job to get water running through it and a bit of a pain to clean but other than that very good 😌

## Features

- Customisable temperature: HeatUp adjustable heater available as an option for FiltoSmart Thermo – also easy to retrofit using ThermoFit for FiltoSmart
- Effective: Large filter surface in a compact size. Includes connection set: Ready for installation and with practical self-venting function. Optimum base: Safe and stable stand
- Automatic shut-off: No unwanted water leaks during filter cleaning
- Easy to open: Easy-click opening mechanism. Economical: Quiet and energy-efficient pump with no disturbing noise
- Individually adjustable: Water flow rate can be adjusted at inlet and outlet adapter

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01HZYWE9I |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 15,898 in Pet Supplies ( See Top 100 in Pet Supplies ) 74 in Aquarium Filters |
| Colour | Black, Blue |
| Customer Reviews | 4.0 4.0 out of 5 stars (137) |
| Date First Available | 12 May 2016 |
| Item Form | Device |
| Item Weight | 5.21 kg |
| Item model number | 42697 |
| Product Dimensions | 28 x 24.5 x 45.5 cm; 5.21 kg |
| Quantity | 1 |
| Size | 300 |
| Specific Uses | Indoor |

## Product Details

- **Brand:** Oase
- **Item form:** Device
- **Item weight:** 5.21 Kilograms
- **Liquid volume:** 1 Millilitres
- **Manufacturer:** OASE GmbH

## Images

![OASE FiltoSmart Thermo 300 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 300 L, including Heater HeatUp 300 W - Image 1](https://m.media-amazon.com/images/I/51iQGJ6+IvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth the money .!
*by D***N on 31 May 2021*

Brilliant filter . Good solid build , nice materials . Comes with all sponges and media . Keeps the water crystal clear , gives a nice flow to the tank . Built in thermostat with clear reading .Runs quietly and very easy to clean. Best filter out there for the price .!

### ⭐⭐⭐⭐⭐ Nice bit of kit very quiet
*by T***Y on 19 April 2021*

It is a good product keeps the tanks Very clean it is a bit of a job to get water running through it and a bit of a pain to clean but other than that very good 😌

### ⭐⭐⭐⭐⭐ Worth every penny
*by P***L on 29 April 2025*

I actually saw people on YouTube talking about and using these filters and they said they were really good plus the addition of the heater in the filter is awesome so no longer have a big long glass tube in middle of the tank and helps to make the tank even more natural for the fish as for the filter it’s self it’s working great my water was clear or so I thought beforehand but now it’s crystal clear very impressive filter comes with two bags of carbon 3 sponge and ceramic rings all fits perfectly in it’s own space in the filter and easy to clean and change anything around add or reduce the filter media as you like but the basic filter as it comes is more then enough

## Frequently Bought Together

- FiltoSmart Thermo 300 External Aquarium Heater - Oase
- API ROOT TABS Freshwater Aquarium Plant Fertilizer 13 g 10-Count Box
- API LEAF ZONE Freshwater Aquarium Plant Fertilizer 473 ml Bottle

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vu/products/56861755-oase-filtosmart-thermo-300-aquarium-filter-external-aquarium-filter-freshwater](https://www.desertcart.vu/products/56861755-oase-filtosmart-thermo-300-aquarium-filter-external-aquarium-filter-freshwater)

---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-07*