Description
xOverview
Keep your aquarium water clear and your fish thriving with the Penn-Plax Filt-a-Carb Replacement Media Cartridges. This 2-pack is designed to fit the lift tubes of Undertow and Perfecto Perfect-A-Flow filters, delivering convenient chemical filtration that supports a healthy tank environment without guesswork.
How it works
Activated carbon in the cartridges adsorbs pollutants as water passes through, helping reduce odor and discoloration while targeting compounds that can cloud water. The result is a tank that looks more natural and can be more pleasant to observe, especially during routine feeding and decor changes.
The 2-pack design means you have ready replacements on hand, keeping maintenance straightforward for both new and experienced aquarists.
Key benefits you may notice
- Chemical filtration that helps manage ammonia, nitrites, nitrates, and phosphates as part of a regular maintenance routine.
- Removal of a range of chemicals and toxins that can affect water clarity and tank aesthetics.
- Reduction of discoloration and foul odors, contributing to a fresher, more inviting viewing experience.
- Lightweight and disposable design for easy handling and quick cartridge changes.
- Safe for both freshwater and saltwater setups, making them a versatile option for mixed tanks.
Best-practice tips
- Replace cartridges every 2 to 4 weeks for best performance and consistency.
- Install in Undertow or Perfecto Perfect-A-Flow lift-tube systems to maintain optimal flow.
- Keep spare cartridges on hand to minimize downtime during routine maintenance.
- Performance may vary with feeding schedules and tank bioload; adjust replacement timing accordingly.
About Penn-Plax
Penn-Plax is a trusted name in pet supplies, offering practical solutions for aquatic environments and other animals. The Filt-a-Carb cartridges reflect reliability, ease of use, and compatibility with popular filter systems.
FAQ
Q: Which filters do these cartridges fit?
A: They fit the Undertow and Perfecto Perfect-A-Flow lift-tube filters.
Q: How often should I replace them?
A: Replace every 2–4 weeks for best results.
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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