---
product_id: 326630822
title: "Cut to Fit Activated Carbon Filter Sponge – 2-Size Options (9.8\"x9.8\"x0.4\" 3PC/36\"x12\"x0.4\" 1PC) for Aquarium Fish Tank Canister Filters, Chemical & Mechanical Filtration (1)"
brand: "cosiboa"
price: "15302 Ft"
currency: HUF
in_stock: true
reviews_count: 8
url: https://www.desertcart.hu/products/326630822-cut-to-fit-activated-carbon-filter-sponge-2-size-options
store_origin: HU
region: Hungary
---

# 1200m²/g activated carbon surface 200-300g/m³ oxygen transmission Cut-to-fit modular design Cut to Fit Activated Carbon Filter Sponge – 2-Size Options (9.8"x9.8"x0.4" 3PC/36"x12"x0.4" 1PC) for Aquarium Fish Tank Canister Filters, Chemical & Mechanical Filtration (1)

**Brand:** cosiboa
**Price:** 15302 Ft
**Availability:** ✅ In Stock

## Summary

> 🧽 Cut, Clean, Conquer: The Ultimate Aquarium Filter Upgrade

## Quick Answers

- **What is this?** Cut to Fit Activated Carbon Filter Sponge – 2-Size Options (9.8"x9.8"x0.4" 3PC/36"x12"x0.4" 1PC) for Aquarium Fish Tank Canister Filters, Chemical & Mechanical Filtration (1) by cosiboa
- **How much does it cost?** 15302 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/326630822-cut-to-fit-activated-carbon-filter-sponge-2-size-options)

## Best For

- cosiboa enthusiasts

## Why This Product

- Trusted cosiboa brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Fit, Zero Hassle:** Cut precisely to fit 80%-95% of canister filters for a seamless installation experience.
- • **Breathe Easy, Fish Happy:** Patented microporous tech boosts dissolved oxygen by 15%-20%, ensuring a thriving aquatic environment.
- • **Long-Lasting Performance:** Retains over 65% carbon activity after 6 months in 500L tanks, outlasting typical filters by 2x.
- • **Triple-Action Purification:** Honeycomb sponge + activated carbon removes 90%+ of harmful substances for crystal-clear water.
- • **Cost-Savvy & Low Maintenance:** Snap-apart design cuts maintenance costs by 40%, with easy cleaning restoring peak efficiency.

## Overview

This activated carbon filter sponge features a versatile cut-to-fit design compatible with most canister filters, patented microporous ventilation for enhanced oxygen supply, and a triple-layer honeycomb structure with 1200m²/g activated carbon surface area. It efficiently removes over 90% of harmful substances, maintains over 65% carbon activity after 6 months, and offers a removable design that reduces maintenance costs by 40%, making it a durable, cost-effective solution for pristine aquarium water.

## Description

Cut to Fit Activated Carbon Filter Sponge – 2-Size Options (9.8"x9.8"x0.4" 3PC/36"x12"x0.4" 1PC) for Aquarium Fish Tank Canister Filters, Chemical & Mechanical Filtration (1)

## Features

- 1.【 PRECISE SIZE FREE CUTTING 】 Adopting 36x12x0.4 inches standard modular design, support scissors/craft knife to quickly cut to fit any size filter (compatible with 80%-95% of commercially available canisters), 0.4 inches thickness to perfectly match the common water flow channels, say goodbye to the embarrassment of the traditional activated carbon block is difficult to plug in.
- 2.【 ALL-WEATHER STABLE OXYGEN SUPPLY 】 The patented microporous ventilation technology enables the carbon layer to maintain 200-300g/m³ continuous oxygen transmission, even in the closed filtration system can maintain the oxygen demand of the aquarium and sensitive fish, and the measured dissolved oxygen is increased by 15%-20%.
- 3. [Triple stereoscopic adsorption system] Innovative honeycomb sponge structure, equipped with modified activated carbon particles, specific surface area of 1200m²/g. Through the physical interception + biodegradation mechanism, harmful substances such as fish manure can be efficiently removed (90%+), and the water quality can be purified, thus reducing the water quality of the replacement fish tank.
- 4.【LONG SERVICE CYCLE】 After 6 months of continuous use in 500L water body, the activated carbon activity retention rate is still >65% (common carbon block only 3-4 months), with removable snap design, support for individual replacement of activated carbon layer, maintenance costs reduced by 40%.
- 5.SIMPLIFIED MAINTENANCE AND LONG-LASTING DURABILITY A single piece can be used continuously for 4-6 weeks, and regular cleaning of the sponge can restore the filtration efficiency, reducing the cost of frequent replacement of consumables and lowering the burden of maintenance on the user.

## Images

![Cut to Fit Activated Carbon Filter Sponge – 2-Size Options (9.8"x9.8"x0.4" 3PC/36"x12"x0.4" 1PC) for Aquarium Fish Tank Canister Filters, Chemical & Mechanical Filtration (1) - Image 1](https://m.media-amazon.com/images/I/81q5dAjzHES.jpg)
![Cut to Fit Activated Carbon Filter Sponge – 2-Size Options (9.8"x9.8"x0.4" 3PC/36"x12"x0.4" 1PC) for Aquarium Fish Tank Canister Filters, Chemical & Mechanical Filtration (1) - Image 2](https://m.media-amazon.com/images/I/91mDDKGeVMS.jpg)
![Cut to Fit Activated Carbon Filter Sponge – 2-Size Options (9.8"x9.8"x0.4" 3PC/36"x12"x0.4" 1PC) for Aquarium Fish Tank Canister Filters, Chemical & Mechanical Filtration (1) - Image 3](https://m.media-amazon.com/images/I/81ky1vplgaS.jpg)
![Cut to Fit Activated Carbon Filter Sponge – 2-Size Options (9.8"x9.8"x0.4" 3PC/36"x12"x0.4" 1PC) for Aquarium Fish Tank Canister Filters, Chemical & Mechanical Filtration (1) - Image 4](https://m.media-amazon.com/images/I/81zEh6TxuYS.jpg)
![Cut to Fit Activated Carbon Filter Sponge – 2-Size Options (9.8"x9.8"x0.4" 3PC/36"x12"x0.4" 1PC) for Aquarium Fish Tank Canister Filters, Chemical & Mechanical Filtration (1) - Image 5](https://m.media-amazon.com/images/I/81uDz6+oLgS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice cut to fit filter!
*by A***A on March 12, 2025*

Got this to replace pre-filter in Aer1 air filter. It can be washed several times, but its nice having new filter. I just cut to fit.

### ⭐⭐⭐⭐ Could be packaged better
*by A***R on November 12, 2024*

The filter comes vacuumed packed and needs to be washed in warm water to properly expand, then allowed to dry before use. It is folded over itself a few times.There is little dust or flaking of the carbon coating of the foam when handled, which is a good thing, though I would have preferred it just come in a tightly rolled package.

### ⭐⭐⭐⭐⭐ Great for the DIYer!
*by R***E on July 27, 2024*

The media could not be loaded. I have a second hand paw pail, a convenient outdoor garbage can for dog poo. To keep the smell down, it uses carbon activated filters that are rather expensive and need to be changed every few weeks. Using this strip I was able to cut out 26 filters that should last me at least a year and a half. Great product. Easy to work with. Easy to cut. I just took the magnetic filter holder off of the pail and used it as a template with the filter pad folded in half and cut it out. I used the filter holder again to cut around the magnetic piece and the filters work perfectly. Once I installed it, it controlled the smell great in sunny 85° weather on the deck.

## Frequently Bought Together

- COSIBOA Cut to Fit Activated Carbon Filter Sponge – 2-Size Options (9.8"x9.8"x0.4" 3PC/36"x12"x0.4" 1PC) for Aquarium Fish Tank Canister Filters, Chemical & Mechanical Filtration (1)
- Aquatic Experts Aquarium Filter Floss for Fish Tank Filters - FilterFirst Aquarium Filter Pad - Media Roll for Crystal Clear Water, 3/4" - 1" Thick (12 Inch Wide, 72 Inch Long)
- BIG Kahuna Aquarium Filter Floss Rolls – 12-inch Pond and Aquarium Filter Media – 1-inch Thick Wet/Dry Aquarium Filter Pad – 10ft - Bonded Filter Media Pad for Freshwater or Marine Aquariums, Ponds

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-11*