---
product_id: 103348164
title: "Fluval U Underwater Filter BioMax, 170 gm"
brand: "fluval"
price: "€ 17.04"
currency: EUR
in_stock: true
reviews_count: 7
category: "Fluval"
url: https://www.desertcart.hr/products/103348164-fluval-u-underwater-filter-biomax-170-gm
store_origin: HR
region: Croatia
---

# Optimized for freshwater & marine use 170g bio rings for max bacteria growth Complex pore system for superior filtration Fluval U Underwater Filter BioMax, 170 gm

**Brand:** fluval
**Price:** € 17.04
**Availability:** ✅ In Stock

## Summary

> 🦠 Elevate your aquarium’s ecosystem with Fluval BioMax – where science meets serenity!

## Quick Answers

- **What is this?** Fluval U Underwater Filter BioMax, 170 gm by fluval
- **How much does it cost?** € 17.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/103348164-fluval-u-underwater-filter-biomax-170-gm)

## 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

- • **Compact Yet Powerful:** Ideal for Fluval U2, U3, U4 filters where space is premium
- • **Trusted by Thousands:** 4.7-star rating with over 3,500 reviews proves proven performance
- • **Advanced Porous Design:** Unique bio rings maximize surface area for ammonia & nitrate control
- • **Thriving Beneficial Bacteria:** Creates the perfect habitat for essential biofilm growth
- • **Versatile Aquatic Compatibility:** Engineered for freshwater, marine, and reptile tanks alike

## Overview

Fluval U Underwater Filter BioMax (170g) features uniquely designed bio rings with a complex pore system that fosters beneficial bacteria growth, effectively reducing ammonia and nitrate levels. Compatible with Fluval U2, U3, and U4 filters, it supports freshwater, marine, and reptile environments, ensuring optimal water quality and a thriving aquatic habitat.

## Description

Fluvial biomax provides an optimal environment for beneficial bacteria growth. The bio rings have a complex pore system creating an optimal environment where beneficial bacteria can thrive.

Review: Good Product Fast Delivery - Product received as described in perfect condition. One of the best Bio Media for smaller aquarium filters in which larger bio rings cannot be accommodated. Seller took feedback for product and delivery issues if any.
Review: Very less quantity, returned it immediately. - Very less quantity

## Features

- Provides an optimal environment for the colonization and growth of beneficial bacteria (biological filter media)
- Unique bio rings have a complex pore system
- Reduces and controls ammonia and nitrate
- Suitable for freshwater, marine or reptile environments
- Designed for fluval u2, u3, u4 underwater filters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001XRR2IM |
| Best Sellers Rank | #17,178 in Pet Supplies ( See Top 100 in Pet Supplies ) #195 in Filter Accessories |
| Brand | Fluval |
| Brand Name | Fluval |
| Colour | White |
| Country of Publication | China |
| Customer Reviews | 4.7 out of 5 stars 3,526 Reviews |
| Global Trade Identification Number | 00015561104951 |
| Included Components | Fluval U Underwater BioMax Filter |
| Item Dimensions L x W x H | 6.9L x 3.8W x 26.9H Centimeters |
| Item Type Name | Hagen FLUVAL"U"FILTER BIOMAX;170G |
| Item Weight | 0.1 Pounds |
| Manufacturer | Hagen |
| Manufacturer Part Number | A495 |
| Material | Ceramic |
| Material Type | Ceramic |
| Model Number | A495 |
| Product Dimensions | 6.9L x 3.8W x 26.9H Centimeters |
| Product Style | BioMax |
| Specific Uses For Product | Indoor |
| Style | BioMax |
| UPC | 015561104951 |
| Unit Count | 1 Count |

## Product Details

- **Pet toy type:** Ball
- **Theme:** Cleaning
- **Breed Recommendation:** Large Breeds
- **Brand:** Fluval
- **Recommended Uses For Product:** Aquarium Filter Media
- **Cartoon Character:** fish
- **Indoor/Outdoor Usage:** Indoor
- **Colour:** White
- **Material:** Ceramic
- **Item Weight:** 45 g

## Images

![Fluval U Underwater Filter BioMax, 170 gm - Image 1](https://m.media-amazon.com/images/I/818XJ-6cv9L.jpg)
![Fluval U Underwater Filter BioMax, 170 gm - Image 2](https://m.media-amazon.com/images/I/81Nu2KmEG5L.jpg)
![Fluval U Underwater Filter BioMax, 170 gm - Image 3](https://m.media-amazon.com/images/I/81Tx4tSC2LL.jpg)
![Fluval U Underwater Filter BioMax, 170 gm - Image 4](https://m.media-amazon.com/images/I/81YLr-h4UeL.jpg)
![Fluval U Underwater Filter BioMax, 170 gm - Image 5](https://m.media-amazon.com/images/I/31DK8SpnG+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Product Fast Delivery
*by A***H on 17 September 2020*

Product received as described in perfect condition. One of the best Bio Media for smaller aquarium filters in which larger bio rings cannot be accommodated. Seller took feedback for product and delivery issues if any.

### ⭐ Very less quantity, returned it immediately.
*by S***E on 17 April 2021*

Very less quantity

### ⭐⭐⭐⭐⭐ Optimales Filtermaterial
*by I***L on 23 June 2025*

Perfektes Filtermaterial fürs Aquarium.

## Frequently Bought Together

- Fluval U Underwater Filter BioMax
- Fluval U4 Bio-Foam Pad, Replacement Underwater Aquarium Filter Media, A488
- Fluval U3 Underwater Filter Foam Pad

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-14*