---
product_id: 526953825
title: "Aillsa Aquarium Canister Filter Pads Sponges (9 pcs) Replacement for SUNSUN HW-304B/404B/704B/3000 CF500 Filter Pads Bio Sponges"
brand: "aillsa"
price: "€ 57.61"
currency: EUR
in_stock: true
reviews_count: 3
url: https://www.desertcart.nl/products/526953825-aillsa-aquarium-canister-filter-pads-sponges-9-pcs-replacement-sunsun
store_origin: NL
region: Netherlands
---

# 3-density sponge system Reusable & washable Precision-cut fit Aillsa Aquarium Canister Filter Pads Sponges (9 pcs) Replacement for SUNSUN HW-304B/404B/704B/3000 CF500 Filter Pads Bio Sponges

**Brand:** aillsa
**Price:** € 57.61
**Availability:** ✅ In Stock

## Summary

> 🧼 Elevate your aquarium’s clarity with precision filtration!

## Quick Answers

- **What is this?** Aillsa Aquarium Canister Filter Pads Sponges (9 pcs) Replacement for SUNSUN HW-304B/404B/704B/3000 CF500 Filter Pads Bio Sponges by aillsa
- **How much does it cost?** € 57.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/526953825-aillsa-aquarium-canister-filter-pads-sponges-9-pcs-replacement-sunsun)

## Best For

- aillsa enthusiasts

## Why This Product

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

## Key Features

- • **Easy Installation:** Snap-in design means no hassle—upgrade your filter pads in seconds without tools.
- • **Perfect Compatibility:** Custom-cut to fit SUNSUN HW-304B/404B/704B/3000 and Polar Aurora filters flawlessly.
- • **Reliable Water Quality:** Maintains optimal tank health by preventing clogging and ensuring smooth water flow.
- • **Triple-Action Filtration:** Coarse, medium, and fine sponges trap all debris sizes for crystal-clear water.
- • **Eco-Friendly & Cost-Saving:** Wash and reuse each sponge pad multiple times, reducing waste and replacement frequency.

## Overview

Aillsa Aquarium Canister Filter Pads come in a set of 9 high-quality bio sponges with three densities—coarse, medium, and fine—designed for SUNSUN and Polar Aurora canister filters. These precision-cut pads are washable and reusable, ensuring efficient debris removal without restricting water flow, making maintenance effortless and your aquatic environment pristine.

## Description

Maintenance of the bio sponge filter pads： Remove and clean with water when the sponge pads are found to be dirty, or remove and clean once every 1-4 weeks It is recommended to replace the sponge in 6 to 12 months or after the sponge wears out, because long time use, there will be debris particles blocking the micro-pores of the sponge, affecting the use. Dimension: 8.5”x8.5”x0.79” (L x W x H) Includes: 3xcoarse (Black) 3x medium (Green) 3xfine (Blue) After-sales service: When you buy Aillsa Filter Pads Bio Sponges, you can apply for return or exchange if you are not satisfied with the product. Any questions about g filter pads can be consulted at any time, and we will reply by email within 24

## Features

- Aillsa Filter Pads Bio Sponges for fits sunsun canister filter HW-304B/404B/704B, HW-3000, Polar Aurora 525gph,Polar Aurora x04 Replacement of filter pads
- Aquarium sponge pads 3 densities are provided：coarse medium and fine，Each one can be rinsed and used repeatedly
- The use of high-quality sponge, not only will not limit the flow of water at the same time can also filter the obvious tank debris particles
- The sponge pads are very easy to install or replace because of the precise cut, just put them in my canister filter tray and fill the canister.
- Note: 9 bio sponge filter pads: 3 coarse (black), 3 medium (green), 3 fine (blue), remove and clean with water when you notice the sponge pads are getting dirty to ensure water quality.

## Images

![Aillsa Aquarium Canister Filter Pads Sponges (9 pcs) Replacement for SUNSUN HW-304B/404B/704B/3000 CF500 Filter Pads Bio Sponges - Image 1](https://m.media-amazon.com/images/I/81kRJE3nh0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5*s for vacuum sealed
*by M***N on October 25, 2023*

Thank goodness they vacuumed sealed nine foams to save space as backup parts. Most times they don't. My HW-404 foams are about 3 years old, and time to be permanently replaced.

### ⭐ Extremely disappointing
*by M***R on August 22, 2024*

I'm writing this review to remind myself NEVER to buy these again. The filters you receive initially with the Sun Sun canister filters are great! Properly sized and do an excellent job of filtering. When this package arrived I honestly thought it was a bad joke. These appear to have been cut by a 4 year old using safety scissors. These filters do not begin to cover the surface area of the Sun Sun canister trays. Additionally, the sponge material is very brittle. I threw mine out after taking this picture.

### ⭐ Terribly manufactured
*by L***L on September 8, 2024*

The product once out of the packaging appeared mangled, like it wasn't cut properly. The quality was inferior to others I have bought for less money. I will be returning it and ordering from another manufacturer. Very dissatisfied.

## Frequently Bought Together

- Aquarium Canister Filter Pads Sponges (9 pcs) Replacement for SUNSUN HW-304B/404B/704B/3000 CF500 Filter Pads Bio Sponges
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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-26*