---
product_id: 450366074
title: "T300 Fully Electronic Heater for Freshwater Aquariums up to 80 Gal."
brand: "fluval"
price: "¥19207"
currency: JPY
in_stock: true
category: "Fluval"
url: https://www.desertcart.jp/products/450366074-t300-fully-electronic-heater-for-freshwater-aquariums-up-to-80
store_origin: JP
region: Japan
---

# 300W powerful heating Precise 72-90°F adjustable range 360° heat mode indicator ring T300 Fully Electronic Heater for Freshwater Aquariums up to 80 Gal.

**Brand:** fluval
**Price:** ¥19207
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your aquatic world perfectly cozy with Fluval’s smart heat mastery! 🌊

## Quick Answers

- **What is this?** T300 Fully Electronic Heater for Freshwater Aquariums up to 80 Gal. by fluval
- **How much does it cost?** ¥19207 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/450366074-t300-fully-electronic-heater-for-freshwater-aquariums-up-to-80)

## Best For

- fluval enthusiasts

## Why This Product

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

## Key Features

- • **Flexible Placement:** Fully submersible and mountable vertically or horizontally anywhere in your tank for optimal heat distribution.
- • **Safety First, Always:** Automatic shutoff in absence of water plus Heater Guard protection prevents overheating and breakage.
- • **Effortless Adjustment:** Large grip dial lets you easily set your ideal temperature between 72°F and 90°F with confidence.
- • **360° Visual Heat Status:** Innovative indicator ring glows red when heating and blue when target temperature is reached—visible from any angle.
- • **Precision Temperature Control:** Advanced electronic design ensures stable, accurate heating for your freshwater aquarium up to 80 gallons.

## Overview

The Fluval T300 is a 300-watt fully submersible electronic heater designed for freshwater aquariums up to 80 gallons. It features precise temperature control from 72°F to 90°F, a 360° LED indicator ring for real-time heat status, and multiple safety mechanisms including automatic shutoff and breakage protection. Its versatile mounting options and easy-to-use dial make it a reliable, stylish choice for maintaining a stable aquatic environment.

## Description

The Fluval T Series submersible heaters combine electronic accuracy, reliable monitoring and several safety features to maintain desired water temperatures with convenience in mind. Five model sizes are available to accommodate today’s most popular aquarium sizes. For more fish tank accessories, check out other Fluval products including aquarium filters, aquarium heaters, aquarium air pumps, aquarium lights, aquarium rocks, aquarium thermometers, and aquarium stands. Fluval has a wide variety of products that are perfect for your pet fish to enjoy in any large fish tank, small fish tank, saltwater tank or freshwater tank. Fluval broke onto the aquatic scene in 1975 by introducing the world’s first 3-stage filter with synchronous motor technology – a breakthrough that is still applied in the industry today. Since then, Fluval has built a legacy around this pioneering spirit, relentlessly adapting in a changing world to launch innovative aquarium products that remain at the forefront of technology, and which set the bar in quality, style and functionality. Fluval’s mission is not just about building products that mimic the natural world, but inspiring aquarists of all skill levels to enjoy and respect the hobby for generations to come.

## Features

- 300-Watt heater designed for freshwater aquariums up to 80 Gal (300 L) with advanced electronic construction provides superior accuracy, stability and long-term performance
- 24/7 monitoring regulates temperature and avoids large, unsafe fluctuations and 360° indicator light ring displays heat mode clearly from any angle (illuminates RED when heating function is engaged and BLUE when desired temperature is achieved)
- In absence of water, the T-Heater automatically cuts power to prevent overheating and Heater Guard provides additional protection against breakage
- Large grip dial easily adjusts water temperature from 72-90˚F / 22-32˚C
- Fully submersible design allows for placement anywhere in aquarium either vertically or horizontally

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B1S7TY3J |
| Best Sellers Rank | #35,191 in Pet Supplies ( See Top 100 in Pet Supplies ) #2,227 in Aquarium Accessories |
| Brand Name | Fluval |
| Capacity | 300 liters |
| Color | T300 |
| Customer Reviews | 4.3 4.3 out of 5 stars (439) |
| Heat Output | 300 Watts |
| Included Components | All items listed in description. |
| Is Electric | Yes |
| Item Type Name | Aquarium Heater |
| Item Weight | 0.99 Pounds |
| Manufacturer | Fluval |
| Manufacturer Part Number | 14884 |
| Maximum Temperature | 90 Degrees Fahrenheit |
| Model Number | 14884 |
| Mount Type | internal |
| Number of Items | 1 |
| Number of Packs | 1 |
| Special Features | Dry Combustion Protection |
| Style Name | T300 |
| UPC | 015561148849 |
| Unit Count | 1 Count |
| Wattage | 300 watts |

## Product Details

- **Brand:** Fluval
- **Capacity:** 300 liters
- **Colour:** T300
- **Special features:** Dry Combustion Protection
- **Wattage:** 300 watts

## Images

![T300 Fully Electronic Heater for Freshwater Aquariums up to 80 Gal. - Image 1](https://m.media-amazon.com/images/I/71A3hgzL8PL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Fluval T300 Fully Electronic Heater for Freshwater Aquariums up to 80 Gal.
- PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic
- Fluval FX2 High Performance Canister Aquarium Filter - Multi-Stage Filtration, Built-in Powered Water Change System, and Basket-in-Basket Tray Design

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**Shop now:** [https://www.desertcart.jp/products/450366074-t300-fully-electronic-heater-for-freshwater-aquariums-up-to-80](https://www.desertcart.jp/products/450366074-t300-fully-electronic-heater-for-freshwater-aquariums-up-to-80)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-24*