1. Product Overview
This bundle provides essential replacement components for your Marineland Penguin Bio-Wheel 200 and Bio-Wheel 350 Power Filters. It includes a 12-pack of Marineland Rite-Size C Replacement Filter Cartridges and a Marineland Penguin 200 and 350 Replacement Bio-Wheel Assembly (Part #PRBW2350B). These components are crucial for maintaining clear and healthy aquarium water by providing mechanical, chemical, and biological filtration.
The filter cartridges are designed for efficient removal of debris and impurities, while the Bio-Wheel provides a large surface area for beneficial bacteria to thrive, converting harmful ammonia and nitrites into less toxic nitrates.

Image: Marineland Penguin BIO-Wheel 200 & 350 Filter Cartridge & Bio-Wheel Assembly Bundle.
2. Compatibility
The replacement filter cartridges (Rite-Size C) and Bio-Wheel assembly (Part #PRBW2350B) are compatible with the following Marineland Penguin Power Filters:
- Marineland Penguin Bio-Wheel 200 Power Filter
- Marineland Penguin Bio-Wheel 350 Power Filter
- Discontinued Penguin Bio-Wheel 170 & 330 Power Filters
Note: The Bio-Wheel assembly (Part #PRBW2350B) is NOT compatible with Penguin 150/175/375 filters.

Image: Visual representation of Bio-Wheel assembly compatibility with Marineland Penguin 200 and 350 filters.
3. Components Included
- Marineland Rite-Size C Replacement Filter Cartridges (12-Pack): These cartridges contain activated carbon and filter floss for mechanical and chemical filtration.
- Marineland Penguin 200 and 350 Replacement Bio-Wheel Assembly (Part #PRBW2350B): This rotating biological filter provides a surface for beneficial bacteria.

Image: Marineland Rite-Size C Filter Cartridges, designed for mechanical and chemical filtration.
4. Setup & Installation
Installing Filter Cartridges:
- Unplug the power filter from the electrical outlet.
- Open the filter cover.
- Remove the old filter cartridge. Discard it responsibly.
- Rinse the new Rite-Size C filter cartridge under cool tap water to remove any carbon dust.
- Insert the new cartridge into the filter chamber, ensuring it sits securely.
- Close the filter cover and plug the power filter back into the electrical outlet.
Installing Bio-Wheel Assembly:
- Unplug the power filter from the electrical outlet.
- If replacing an old Bio-Wheel, gently remove it from its brackets.
- Insert the new Bio-Wheel assembly into the designated brackets within the filter housing. Ensure the bearings are snug for smooth rotation.
- Close the filter cover and plug the power filter back into the electrical outlet. Verify that the Bio-Wheel spins freely once water flow is established.
Video: Installation guide for Bio-Wheel filter components, demonstrating proper placement and function.
Video: Step-by-step instructions for replacing Rite-Size C filter cartridges in a Marineland Penguin filter.
5. Operating Instructions
Once installed, the Marineland Penguin Power Filter with its new cartridges and Bio-Wheel assembly will operate continuously to filter your aquarium water. Ensure the water level in your aquarium is sufficient for the filter intake to be fully submerged and for the Bio-Wheel to rotate freely. The filter should run 24/7 for optimal water quality.
6. Maintenance
Filter Cartridge Replacement:
Replace Marineland Rite-Size C filter cartridges approximately every 2-4 weeks, or sooner if water flow is significantly reduced or the cartridge appears heavily clogged. Regular replacement ensures effective mechanical and chemical filtration.
Bio-Wheel Maintenance:
The Bio-Wheel should only be replaced if it is physically breaking apart. To clean the Bio-Wheel, gently rinse it in a bucket of old aquarium water (removed during a water change) to preserve the beneficial bacteria. Avoid rinsing it under tap water, as chlorine can kill these bacteria.
General Aquarium Care:
For a healthy aquarium environment, perform regular water changes. A good practice is the '30-30-30' rule: take 30 minutes every 30 days to replace 30% of your aquarium water. This helps maintain water quality and reduces the buildup of harmful substances.
Video: General aquarium care tips, including the '30-30-30' rule for water changes, from Spectrum Brands Pet LLC.
7. Troubleshooting
- Reduced Water Flow: Check if the filter cartridge is clogged and needs replacement. Ensure the intake tube is clear of debris.
- Bio-Wheel Not Spinning: Verify that the Bio-Wheel is correctly seated in its brackets and that there are no obstructions. Ensure adequate water flow from the filter.
- Excessive Noise: Check for proper seating of all filter components. Ensure the impeller is clean and free of debris.
- Cloudy Water: Replace filter cartridges. Perform a partial water change. Ensure proper feeding habits to avoid overfeeding.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Penguin |
| Product Grade | Replacement Part |
| Outer Material | Plastic |
| Item Weight | 1.56 pounds (0.71 Kilograms) |
| Style | Cartridge |
| Manufacturer | Marineland |
| OEM Part Number | PRBW2350B |
| UPC | 680490918889 |
| Package Dimensions | 12.91 x 7.28 x 7.13 inches |
9. Warranty & Support
For specific warranty information and customer support, please refer to the official Marineland product documentation included with your original power filter or visit the Marineland website. Keep your purchase receipt for warranty claims.