---
product_id: 16476086
title: "FX4 High Performance Aquarium Filter, up to 250 Gal."
brand: "fluval"
price: "€ 918.81"
currency: EUR
in_stock: true
category: "Fluval"
url: https://www.desertcart.pt/products/16476086-fx4-high-performance-aquarium-filter-up-to-250-gal
store_origin: PT
region: Portugal
---

# 700 US Gal/hr pump output Smart Pump microchip tech 1 Gal stackable media capacity FX4 High Performance Aquarium Filter, up to 250 Gal.

**Brand:** fluval
**Price:** € 918.81
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your aquarium game with Fluval FX4 — where smart meets powerful filtration.

## Quick Answers

- **What is this?** FX4 High Performance Aquarium Filter, up to 250 Gal. by fluval
- **How much does it cost?** € 918.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/16476086-fx4-high-performance-aquarium-filter-up-to-250-gal)

## 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

- • **Smart Pump Tech:** Continuous self-optimization means peak performance without the hassle.
- • **Compact Yet Mighty:** Sleek 16.5-inch design fits discreetly under most tanks without sacrificing power.
- • **Effortless Self-Start:** Plug in, add water, and let the filter do the rest—no manual priming needed.
- • **Powerful 700 GPH Flow:** Turbocharge your aquarium’s water clarity with industry-leading circulation.
- • **Precision Media Stacks:** Customizable, removable baskets eliminate bypass for ultra-efficient filtration.

## Overview

The Fluval FX4 is a high-performance canister filter designed for aquariums up to 250 gallons. Featuring a robust 700 US gallons per hour pump, advanced Smart Pump microchip technology for continuous optimization, and removable stackable media baskets holding 1 gallon of filter media, it ensures superior mechanical, chemical, and biological filtration. Its compact 16.5-inch height fits under most tanks, while self-starting and auto air-evacuation functions maximize efficiency and ease of use.

## Description

Fluval FX4 is a high performance canister filter with many outstanding features designed to make aquarium fish keeping easier and more convenient than ever. This super capacity yet compact canister filter has a pump output of 700 gallons of water and has a filter circulation of 450 GPH, which both work to produce cleaner and healthier results. Filtering material can easily be placed in a removable stack of media baskets, which is at the heart of Fluval's multistage filtration. The baskets are precision-engineered to eliminate water by-pass, making filtration more efficient. The baskets can hold a total of 1 gallon of media and can be stacked in the precise combination of layers that will work best for your aquarium. Each one is lined with a foam insert for effective mechanical pre-filtering. Instant-release T-handles let you lift and separate the baskets quickly and easily, making routine maintenance simpler. FX4 also features Smart Pump Technology, which provides optimal filter performance. This advanced technological feature employs an electronic circuit board that continually monitors the pump. Impeller speed and force are constantly measured to ensure powerful output and energy efficiency. It also manages the filter's self-starting feature and evacuates air that may enter or build up within the filtration system. On a 12-hour cycle, the pump will pause and allow trapped air to escape, ensuring the best filtration efficiency. Only 16.5 inches in height, FX4 fits under most aquariums.Fluval first broke onto the aquatic scene in 1975 by introducing the world’s first 3-stage filter with synchronous motor technology. Since then, Fluval has built a legacy around this pioneering spirit, relentlessly adapting in a changing world to launch innovative aquarium products. 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

- Multi-stage filter pumps out 700 US Gal (2,650 L) of water per hour, Smart Pump advanced microchip technology continuously monitors and optimizes pump performance
- Self-starting – just add water, plug in and Smart Pump will take over, trapped air auto-evacuated every 12 hours to ensure maximum efficiency
- Removable, stackable media baskets eliminate water bypass and hold a total of 1 US Gal (3.9 L) of media, all filter media included - mechanical, chemical and biological
- Compact 16.5 in (42 cm) tall design - easily fits under most aquariums

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00N45GLZQ |
| ASIN  | B00N45GLZQ |
| Best Sellers Rank | #9,054 in Pet Supplies ( See Top 100 in Pet Supplies ) #22 in Aquarium Filters |
| Brand Name | Fluval |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,519) |
| Date First Available  | July 17, 2016 |
| Flow Rate | 2650 liters per hour |
| Global Trade Identification Number | 00015561102148 |
| Included Components | Product in Descripton |
| Item Dimensions L x W x H | 15.6"L x 15.6"W x 15.6"H |
| Item Highlight | Canister Filter for Aquariums |
| Item Type Name | Fluval FX4 High Performance Canister Filter |
| Item Weight | 6.43 kg |
| Item model number  | A214 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer  | Rolf C. Hagen (USA) Corp. |
| Manufacturer Part Number | A214 |
| Manufacturer Warranty Description | 3 Year Limited Warranty: The Fluval FX4/FX6 High Performance Canister Filter is guaranteed against defects in material and workmanship under normal aquarium usage and service for 3 years from date of purchase. |
| Manufacturer recommended age  | 1 month and up |
| Material Type | Plastic, Stainless Steel |
| Model Number | A214 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Power Source | Corded Electric |
| Product Dimensions  | 15.6 x 15.6 x 17.7 inches; 14.17 pounds |
| Product Style | Canister |
| Specific Uses For Product | Indoor |
| UPC | 015561102148 |
| Unit Count | 1 Count |
| Voltage | 120 volts |

## Product Details

- **Brand:** Fluval
- **Color:** Black
- **Global Trade Identification Number:** 00015561102148
- **Item Weight:** 6.43 kg
- **Material:** Plastic, Stainless Steel
- **Maximum Flow Rate:** 2650 liters per hour
- **Power Source:** Corded Electric
- **Product Dimensions:** 15.6"L x 15.6"W x 15.6"H
- **Style:** Canister
- **Voltage:** 120 volts

## Images

![FX4 High Performance Aquarium Filter, up to 250 Gal. - Image 1](https://m.media-amazon.com/images/I/71kUpnbpTOL.jpg)

## Available Options

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

## Questions & Answers

**Q: How is the longevity of the FX6 compared to other filters people have owned? (primarily Eheim). I will be using it in a turtle tank if that matters...**
A: I've been using the Fluval FX5 on my 100 gallon red eared slider turtle tank for about 12 years now. It's worked flawlessly over the years. I'm about to replace it with the FX6 due to various things starting to get worn out. So yes it does have pretty good longevity.

**Q: I have a 40 gallon tank for two read eared sliders. Would this filter be too strong or just right for my tank? Also, does it come with the hosing?**
A: I've got it on a 55 gallon and it works fine! With turtles you want at least 3 times the filtration so 40 gallons of water needs a 160 gallon rated filter or stronger. Also it is recommended that you house your turtles separately as they are going to grow to be 8-12 inches long and are solitary in the wild! I recommend you join red ear slider turtle owners resto group on Facebook and they will have all the information on best diet best filters and best tanks for your turtles!

**Q: I am sitting up a 75 gallons tank in my office i don't want to clean it a lot what fluval pump would you suggest**
A: Frequent water changes aren’t a necessity if you set your tank up accordingly. Look up low maintenance/ self sustaining and see for yourself. I have a 75, 50, 29, and two turtle tanks, turtles being the the only ones I regularly change water. No deaths, plants are healthy(NO SUPPLEMENTS OR CO2 added), water is clear, and I’m using HOB filters with only ceramic balls. There’s guides for what you want online that will help far more than these comments.

**Q: Fluval fx4 or fluval 406? 80 gallon planted tank. what do you think?**
A: If you have a heavy stock of fish I would aim for 7-10x total gallons of filtration. 
Currently running 2 fx6 on my 260 gallon which is about 7x flow rate and I’m debating adding a third to get closer to that 10x mark.

These provide great bio filtration and if you set them up right with some tweaking can agitate the surface of the water which increases oxygen in the water and allows more life to exist in your aquarium.

## Frequently Bought Together

- Fluval FX4 High Performance Canister Aquarium Filter - Multi-Stage Filtration, Built-In Powered Water Change System, and Basket-In-Basket Tray Design
- Fluval FX Spray Bar Kit, Aquarium Filter Water Aeration Accessory
- Fluval E 300 Watt Electronic Heater

---

## 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.pt/products/16476086-fx4-high-performance-aquarium-filter-up-to-250-gal](https://www.desertcart.pt/products/16476086-fx4-high-performance-aquarium-filter-up-to-250-gal)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-02*