---
product_id: 103348164
title: "U Underwater Filter BioMax, 170 gm"
brand: "fluval"
price: "2340 kr"
currency: ISK
in_stock: true
reviews_count: 2
category: "Fluval"
url: https://www.desertcart.is/products/103348164-u-underwater-filter-biomax-170-gm
store_origin: IS
region: Iceland
---

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

**Brand:** fluval
**Price:** 2340 kr
**Availability:** ✅ In Stock

## Summary

> 🧫 Elevate your tank’s ecosystem with Fluval BioMax — where science meets serenity.

## Quick Answers

- **What is this?** U Underwater Filter BioMax, 170 gm by fluval
- **How much does it cost?** 2340 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/103348164-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:** Designed specifically for Fluval U2, U3, and U4 filters, fitting snugly without sacrificing performance.
- • **Trusted by Thousands:** With a 4.7-star rating from over 3,400 reviews, it’s the go-to bio media for serious aquarium enthusiasts.
- • **Ammonia & Nitrate Control:** Effectively reduces harmful toxins, ensuring crystal-clear water and a thriving aquatic ecosystem.
- • **Thriving Beneficial Bacteria:** BioMax’s unique porous rings create the perfect habitat for essential bacteria, boosting your aquarium’s health.
- • **Versatile Aquatic Compatibility:** Engineered for freshwater, marine, and reptile tanks—one filter media to rule them all.

## Overview

Fluval U Underwater Filter BioMax (170g) features uniquely designed bio rings with a complex pore system that fosters beneficial bacteria growth, 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 healthy 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 |
| Allergen Information | Nut Free |
| Best Sellers Rank | #39,704 in Pet Supplies ( See Top 100 in Pet Supplies ) #413 in Filter Accessories |
| Brand | Fluval |
| Brand Name | Fluval |
| Customer Reviews | 4.7 out of 5 stars 3,477 Reviews |
| Global Trade Identification Number | 00015561104951 |
| Included Components | Fluval U Underwater BioMax Filter |
| Item Type Name | Hagen FLUVAL"U"FILTER BIOMAX;170G |
| Item Weight | 0.1 Pounds |
| Liquid Volume | 110 Litres |
| Manufacturer | Hagen |
| Target Species | Fish |
| UPC | 015561104951 |
| Unit Count | 1 Count |
| country-of-origin | China |

## 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

![U Underwater Filter BioMax, 170 gm - Image 1](https://m.media-amazon.com/images/I/818XJ-6cv9L.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

## 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

---

## 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.is/products/103348164-u-underwater-filter-biomax-170-gm](https://www.desertcart.is/products/103348164-u-underwater-filter-biomax-170-gm)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-15*