---
product_id: 2858698
title: "Fluval U Underwater Filter BioMax"
brand: "fluval"
price: "฿1002"
currency: THB
in_stock: true
category: "Fluval"
url: https://www.desertcart.co.th/products/2858698-fluval-u-underwater-filter-biomax
store_origin: TH
region: Thailand
---

# Works in freshwater & marine environments Complex pore system for bacteria growth Reduces ammonia & nitrate levels Fluval U Underwater Filter BioMax

**Brand:** fluval
**Price:** ฿1002
**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 by fluval
- **How much does it cost?** ฿1002 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/2858698-fluval-u-underwater-filter-biomax)

## 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

- • **Half-Refill Convenience:** Replenish only half at a time to maintain continuous filtration without downtime.
- • **Optimized Bacterial Habitat:** Ceramic bio rings with intricate pores foster thriving beneficial bacteria colonies.
- • **Dual Environment Compatibility:** Seamlessly supports both freshwater and marine aquarium ecosystems.
- • **Efficient Water Quality Control:** Effectively reduces harmful ammonia and nitrate, ensuring crystal-clear water.
- • **Perfect Fit for Fluval U Series:** Designed exclusively for U2, U3, and U4 filters for hassle-free integration.

## Overview

Fluval U Underwater Filter BioMax is a ceramic bio ring filter media engineered to promote beneficial bacteria growth through a complex pore system. Compatible with Fluval U2, U3, and U4 filters, it supports both freshwater and marine aquariums by reducing ammonia and nitrate levels, ensuring healthier aquatic environments with easy half-refill maintenance.

## Description

Fluval 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. It also reduces and controls ammonia and nitrate. For freshwater and marine environments.For U series filter models: U2,U3,U4

## Features

- Replenish only half at one time
- Fits the Fluvial U2, U3 and U4 Filters
- Promotes growth of beneficial bacteria
- Works in freshwater or marine environments

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001XRR2IM |
| ASIN  | B001XRR2IM |
| Best Sellers Rank | #33,811 in Pet Supplies ( See Top 100 in Pet Supplies ) #333 in Aquarium Filter Accessories |
| Brand Name | Fluval |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,597) |
| Date First Available  | August 19, 2004 |
| Global Trade Identification Number | 00015561104951 |
| Included Components | Fluval U Underwater BioMax Filter |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions L x W x H | 2.7"L x 1.5"W x 10.6"H |
| Item Type Name | Hagen FLUVAL"U"FILTER BIOMAX;170G |
| Item Weight | 0.1 Pounds |
| Item model number  | A495 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer  | Rolf C. Hagen (USA) Corp. |
| Manufacturer Part Number | A495 |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Material Type | Ceramic |
| Model Number | A495 |
| Product Dimensions  | 2.7 x 1.5 x 10.6 inches; 1.6 ounces |
| Product Style | BioMax |
| Specific Uses For Product | Indoor |
| UPC | 015561104951 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Fluval
- **Color:** White
- **Global Trade Identification Number:** 00015561104951
- **Item Weight:** 0.1 Pounds
- **Manufacturer:** Rolf C. Hagen (USA) Corp.
- **Material:** Ceramic
- **Number of Items:** 1
- **Number of Packs:** 1
- **Product Dimensions:** 2.7"L x 1.5"W x 10.6"H
- **Style:** BioMax

## Images

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

## 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 Thailand*
*Store origin: TH*
*Last updated: 2026-07-05*