---
product_id: 2221489
title: "Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack"
brand: "fluval"
price: "R242"
currency: ZAR
in_stock: false
reviews_count: 13
url: https://www.desertcart.co.za/products/2221489-fluval-foam-filter-block-206-207-306-and-307-2
store_origin: ZA
region: South Africa
---

# High-density foam for superior mechanical filtration Dual-action: mechanical + biological filtration boost Value-packed 2-block set for extended filter life Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack

**Brand:** fluval
**Price:** R242
**Availability:** ❌ Out of Stock

## Summary

> 🧼 Keep your aquarium pristine with Fluval’s foam filter blocks—because your fish deserve the best!

## Quick Answers

- **What is this?** Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack by fluval
- **How much does it cost?** R242 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/2221489-fluval-foam-filter-block-206-207-306-and-307-2)

## 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

- • **Value & Convenience:** 2-pack bundle means less frequent replacements and hassle-free maintenance
- • **Dual Filtration Power:** Mechanical straining plus enhanced biological activity for crystal-clear water
- • **Perfect Fit Guarantee:** Designed specifically for Fluval 204/205/206/304/305/306 filters—no compromises
- • **Clog-Free Aquarium Flow:** Prevents premature clogging to keep your filter running at peak performance
- • **Long-Lasting Durability:** Retains shape and integrity longer than knock-offs, ensuring consistent filtration

## Overview

Fluval Foam Filter Blocks deliver premium mechanical filtration by trapping large particles and preventing clogging of finer media, while their porous structure supports beneficial bacteria growth for enhanced biological filtration. Compatible with Fluval 204/205/206/304/305/306 filters, this 2-pack offers durable, perfectly fitting foam blocks that maintain shape and performance, ensuring cleaner, healthier aquarium water with less maintenance.

## Description

Product Description Fluval Foam provides mechanical straining of particulate waste. It prevents particulate waste from prematurely clogging other filter media in the Module Stack. Although the primary purpose of Fluval Foam is mechanical filtration, biological activity will eventually occur within its pore structure. desertcart.com Fluval Foam Filter BlockFluval Aquarium Filter Foam Blocks provide mechanical straining of particulate waste. It prevents particulate waste from prematurely clogging other filter media in the module stack. Although the primary purpose of Fluval Foam is mechanical filtration, biological activity will eventually occur within its pore structure. These Fluval Aquarium Filter Foam Blocks also enhance biological filtration and are suitable for the Fluval 204/205/206 and Fluval 304/305/306 Aquarium Filters. Fluval Filters Model Fluval 106 Fluval 206 Fluval 306 Fluval 406 Fluval G6 Fluval Fx6 Aquarium Capacity 25 US Gallons 45 US Gallons 70 US Gallons 100 US Gallons 160 US Gallons 400 US Gallons Dimensions 15 X 6 X 8 inches 18 X 7 X 8 inches 18 X 7 X 10 inches 20 X 8 X 10 inches 10 x 9 x 13 inches 16 x 16 x 21 inches Pump Output 145 US Gal/h 206 US Gal/h 303 US Gal/h 383 US Gal/h 650 US Gal/h 925 US Gal/h Filter Circulation 95 US Gal/h 121 US Gal/h 206 US Gal/h 245 US Gal/h 265 US Gal/h 538 US Gal/h Head Height (max.) 4.8 ft 4.8 ft 5.6 ft 7.5 ft 4.8 ft 7.6 ft Media Capacity 3.2 Liters 4.6 Liters 6.6 Liters 8.5 Liters 9.5 Liters 11.5 Liters Wattage 120V/60Hz: 10W 120V/60Hz: 10W 120V/60Hz: 16W 120V/60Hz: 23W 120V/60Hz: 27W 120V/60Hz: 43W Fluval MediaFluval CarbonFluval Carbon, 100-gram Nylon Bags - 3-PackFluval Carbon Filter Media Insert is capable of adsorbing most liquified impurities and dyes present in aquarium water. It does not contain phosphates and will not change the pH of the aquarium water.Fluval Foam Filter BlockFluval Foam Filter Block (204/205/306 & 304/305/306)- 2-PackFluval Aquarium Filter Foam Blocks provide mechanical straining of particulate waste. It prevents particulate waste from prematurely clogging other filter media in the module stack.Fluval Biomax Bio RingsFluval Biomax Bio Rings - 500 grams/17.63 ouncesFluval BioMax Media Inserts have a complex pore system creating an optimal environment where beneficial bacteria can thrive.Fluval Ammonia RemoverFluval Ammonia Remover, 180-gram Nylon Bags - 3-PackFluval Ammonia Remover is a natural ion-exchange media designed to remove toxic ammonia as water passes over it. Controlling ammonia levels reduces stress on fish.Fluval Clearmax Phosphate RemoverFluval Clearmax Phosphate Remover Filters, 3.5 Ounces - 3-PackClearmax Phosphate Remover traps phosphate, nitrate and nitrite. It also reduces odors, makes maintenance easier and provides crystal clear water to create ideal conditions for fish.Fluval Zeo-CarbFluval Zeo-Carb, 150 Gram, 3-Pack Nylon BagsFluval Zeo-Carb is a premium blend of research grade Fluval Carbon and Fluval Ammonia Remover. Working together, these highly effective media eliminate liquefied impurities.Fluval Fine Water Polishing PadFluval Fine Filter Water Polishing PadFluval Water Polishing Pads are uniquely designed to fit Fluval Canister Filters. These extra thick micro-fine polyester pads effectively trap micro particles and debris as water passes through.Fluval Pre-Filter MediaFluval Pre-Filter Media - 750 grams/26.45 ouncesFluval Pre-Filter is designed to capture solid waste before they reach other media. This prevents premature clogging of finer filters and extends their life, reducing media replacements frequency.Fluval Peat GranulesFluval Peat Granules, 500 Gram/17.6 OunceFluval Peat Granules are the all-natural way to soften aquarium water and achieve the pH levels required for breeding and rearing certain tropical fish.Fluval BioFoamFluval Bio FoamFluval bio-foam combines mechanical and biological filtration. Its porous structure increases surface area for the growth of helpful nitrifying bacteria.

Review: I've been using these for years - I have a Fluval 304 filter on a 50-gallon freshwater aquarium, and I've been using these foam filters for years. I LOVE the Fluval filter... it's worked consistently and wonderfully for me for quite some time and I've not found any other filter that I've experienced or think would work as well. The Fluval 304 has 4 filtration stages, the first of which is these foam filter blocks. BEWARE... the are sold in packages of two, but the 304 (and 305) filters require FOUR of these blocks. In other words, if you want to completely replace the foam filtration stage, you have to get TWO packages. That being said, the filter works great for me and my aquarium needs only occasional maintenance. I know that there are knock-off products out there, and I've tried some in the past, but the quality of the material hasn't been the same in the ones I've tried. Since the key to making the Fluval filter work is to ensure that the water passes through each filtration stage, it's important that this foam filter block fit properly and maintain its shape. I've had other knock-off products that lose their shape, which disrupts the function of the filter. To me, it's worth it to spend a few bucks more and ensure that the filter works as intended.
Review: Good - Exact fit easy to install.

## Features

- Provides mechanical filteration of large particles
- Prevents premature clogging
- Enhances biological filtration
- 2-pack; Suitable for Fluval 204/205, 206/306 and 304/305 Filters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001D02O64 |
| ASIN  | B001D02O64 |
| Age Range Description | all ranges |
| Best Sellers Rank | #97,752 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,621 in Aquarium Filter Accessories |
| Brand Name | Fluval |
| Breed Recommendation | Large Breeds |
| Color | White |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,290) |
| Date First Available | June 20, 2004 |
| Date First Available  | June 20, 2004 |
| Department | Unisex-Adult |
| Department  | Unisex-Adult |
| Directions | Fluval Foam provides mechanical straining of particulate waste. It prevents particulate waste from prematurely clogging other filter media in the Module Stack. Although the primary purpose of Fluval Foam is mechanical filtration, biological activity will eventually occur within its pore structure. |
| Included Components | Fluval Filter Foam Block 204/205/206/304/305/306 Models (2 pack) |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 3.1 x 3.1 x 2 inches |
| Item Package Dimensions L x W x H | 10.2 x 3.23 x 1.93 inches |
| Item Weight | 0.03 Kilograms |
| Item model number | A222A1 |
| Item model number  | A222A1 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer  | Rolf C. Hagen (USA) Corp. |
| Material | foam |
| Model Name | Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack |
| Number of Items | 2 |
| Product Dimensions  | 3.1 x 3.1 x 2 inches; 0.88 ounces |
| Size | 207/307 |
| Specific Uses for Product | Indoor |
| Style | Bio-Foam |
| Target Audience Keyword | fish |
| Warranty Description | Warranty |

## Images

![Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Image 1](https://m.media-amazon.com/images/I/411MCpPYOJL.jpg)
![Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Image 2](https://m.media-amazon.com/images/I/51oxCR5BDCL.jpg)
![Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Image 3](https://m.media-amazon.com/images/I/71+Kv5lA+3L.jpg)
![Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Image 4](https://m.media-amazon.com/images/I/71QnwtTclgL.jpg)
![Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack - Image 5](https://m.media-amazon.com/images/I/71TUZyoMw-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ I've been using these for years
*by D***T on February 22, 2014*

I have a Fluval 304 filter on a 50-gallon freshwater aquarium, and I've been using these foam filters for years. I LOVE the Fluval filter... it's worked consistently and wonderfully for me for quite some time and I've not found any other filter that I've experienced or think would work as well. The Fluval 304 has 4 filtration stages, the first of which is these foam filter blocks. BEWARE... the are sold in packages of two, but the 304 (and 305) filters require FOUR of these blocks. In other words, if you want to completely replace the foam filtration stage, you have to get TWO packages. That being said, the filter works great for me and my aquarium needs only occasional maintenance. I know that there are knock-off products out there, and I've tried some in the past, but the quality of the material hasn't been the same in the ones I've tried. Since the key to making the Fluval filter work is to ensure that the water passes through each filtration stage, it's important that this foam filter block fit properly and maintain its shape. I've had other knock-off products that lose their shape, which disrupts the function of the filter. To me, it's worth it to spend a few bucks more and ensure that the filter works as intended.

### ⭐⭐⭐⭐⭐ Good
*by K***T on October 19, 2025*

Exact fit easy to install.

### ⭐⭐⭐⭐⭐ Filters Last a Long Time
*by J***0 on October 30, 2013*

This Fluval Foam will last for a very long time; some of my Fluval foam is nearly a year old and not falling apart. The foam works great for keeping a colony of beneficial bacteria. I just rinse by swishing in de-chlorinated water every month or so. Each canister needs 4 blocks. I keep extra on hand. When one falls apart I replace it. But I leave them in as long as possible because I don't want to screw up a cycled tank. This foam goes in a canister Fluval 406 External Filter which I use for the sole purpose of growing good bacteria. This setup keeps 6 large fish healthy with consistent zero ammonia and nitrites. Bottom rack: Biofoam blocks Side panels - this product 1st rack Fluval Biomax Bio Rings - 500 grams/17.63 ounces 2nd and 3rd racks Matrix, 2 L / 67.6 oz. I also use a HOB Aqueon 06079 QuietFlow 55/75 Power Filter, 400-GPH to clean the water. I like the Aqueon above all others for getting water clean, you can't beat it! I insert cut pieces of Morning Glory Queen/King Low Loft Batting, 110-Inch by 110-Inch (bought at Walmart) into the Aqueon - replacing the batting when it gets dirty, at least once a week. It's more economical than buying the Aqueon filter replacements.

## Frequently Bought Together

- Fluval Foam Filter Block (206/207/306 & 307)- 2-Pack
- Fluval Carbon Filter Media for Aquariums, Premium Bituminous Carbon Inserts, 100-gram Nylon Bags, 3 Count (Pack of 1), A1440
- Fluval BioMax Biological Material Remover, 500 g - Biological Filter Media for Aquariums

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-19*