---
product_id: 177561425
title: "Penn Plax Cascade 300 GPH Hang On Aquarium Filter Cartridges with Activated Carbon, 3 Pack"
price: "¥23754"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/177561425-penn-plax-cascade-300-gph-hang-on-aquarium-filter-cartridges
store_origin: JP
region: Japan
---

# Penn Plax Cascade 300 GPH Hang On Aquarium Filter Cartridges with Activated Carbon, 3 Pack

**Price:** ¥23754
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Penn Plax Cascade 300 GPH Hang On Aquarium Filter Cartridges with Activated Carbon, 3 Pack
- **How much does it cost?** ¥23754 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/177561425-penn-plax-cascade-300-gph-hang-on-aquarium-filter-cartridges)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Penn Plax Cascade 300 GPH Hang On Aquarium Filter Cartridges with Activated Carbon, 3 Pack

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.6 out of 5 stars 3,582 Reviews |

## Images

![Penn Plax Cascade 300 GPH Hang On Aquarium Filter Cartridges with Activated Carbon, 3 Pack - Image 1](https://m.media-amazon.com/images/I/61Q-+AJ-EWL.jpg)

## Questions & Answers

**Q: Will this fit the cascade 300 hang on filter? here is the link https://www.amazon.com/gp/product/b0002dj82g/ref=crt_ewc_img_dp_2?ie=utf8&psc=1&smid=a2**
A: Thanks for your question. Yes, these filters are designed for the Cascade 300.

**Q: I bought a nine pack and only received three. Can anyone help?**
A: They come  in 3-packs. I've never seen a nine pack.

**Q: I have a 65 gallon aquarium for 2 sliders. How often should I change this filter?**
A: Hey Wendytime, 

Thanks for your question. As a general rule, we recommend you that you change the filter cartridges every 6-8 weeks. However, sliders generate more waste than fish and as a result, you should change the media more often. Your tank conditions will dictate how often they should be changed, but figure around every 3-4 weeks.

**Q: How do i know when the filters are spent? I had an algae bloom and changed mine out probably too quickly to try control it.**
A: I rinse mine and use them until they begin to fall apart.  But I also keep a new set in case of RIP or tear.  I love these filters.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-20*