Description
xOverview
The Penn-Plax Cascade 300 GPH Hang-On Replacement Media cartridges are designed to keep your Cascade 300 GPH filter performing at its best, helping you maintain a healthier, more stable aquarium environment. Sold as a convenient 3-pack, these cartridges are a practical upgrade for ongoing filtration.
With activated carbon and a poly-fiber floss barrier, these cartridges work together to support clearer water and reduced buildup of common tank pollutants. Activated carbon helps reduce odors and discoloration by trapping substances in its porous structure, while the floss layer catches fine debris before it has a chance to circulate back into the tank.
Key benefits and what to expect
- Designed to fit the Cascade 300 GPH hang-on filter model CPF5 without gaps for consistent filtration.
- Activated carbon filtration helps address odors and water discoloration, contributing to a cleaner-looking tank.
- Poly-fiber floss provides an extra barrier to screen out particulate matter and debris.
- No assembly required; installation is straightforward into the filter's interior tray.
- Compatible with freshwater and marine environments, offering flexible use across setups.
- Typically lasts 6–12 weeks under normal conditions, depending on bioload and tank conditions.
- When paired with the Cascade 300 CPF5, they work together to maximize filtration protection for your fish.
Usage tips
For best results, check water parameters regularly and replace cartridges when you notice reduced clarity or odor changes. The fit is precise, helping prevent debris from bypassing the media and returning to the tank.
What you get
- Three replacement filter cartridges tailored for the Cascade 300 GPH hang-on filter.
- Consistent, dependable filtration with a focus on ease of use and aquarium health.
Note: Results can vary by tank size, bioload, and routine maintenance. These cartridges offer a convenient upgrade to your Cascade 300 filtration setup.
FAQ
Q: Will these cartridges fit my Cascade 300 GPH Hang-On Filter?
A: Yes, these cartridges fit Cascade 300 GPH Hang-On filters (CPF5) and come in a 3-pack.
Q: How often should I replace the cartridges?
A: Under normal conditions, replace every 6-12 weeks based on bioload and water quality.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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