Aqueon Medium Replacement Filter Cartridges – 15-Pack | For QuietFlow Filters | 25% More Activated Carbon

Keep your aquarium water crystal clear and your fish healthy with the Aqueon Medium Replacement Filter Cartridges. This value 15-pack ensures you always have a fresh cartridge on hand, so your filter never runs past its prime. Designed specifically for Aqueon QuietFlow filters, these cartridges are engineered for superior filtration performance — delivering cleaner water, healthier fish, and a more beautiful tank.

💧 25% More Activated Carbon Than Leading Brands

What sets Aqueon cartridges apart is their dual-sided design featuring dense floss packed with over 25% more activated carbon than competing brands. Activated carbon is the key ingredient that removes dissolved impurities, toxins, odors, and discoloration from your aquarium water — and more carbon means more effective filtration with every pass through the cartridge.

⚖️ Patented Even Carbon Distribution

Aqueon's patented cartridge design ensures that activated carbon is distributed evenly throughout the entire cartridge — not just concentrated in one area. This means every drop of water passing through the filter gets the full benefit of the carbon, resulting in consistently cleaner, clearer water throughout the entire filtration cycle rather than just at the start.

🔧 Compatible Filters

These Medium cartridges are designed to fit the following Aqueon filter models:

• Aqueon QuietFlow LED PRO Power Filter — Size 10
• Aqueon Power Filter — Size 10
• Aqueon E Internal Power Filter — Size 20

Always check your filter model before purchasing to ensure compatibility.

📦 Easy Installation in Seconds

Replacing your filter cartridge couldn't be simpler:

• Step 1: Rinse the new cartridge under cold water for a few seconds
• Step 2: Insert it into your filter using the "FRONT" orientation tab as a guide to ensure correct placement
• Step 3: That's it — your filter is ready to run!

No tools, no mess, no guesswork. The orientation tab takes the confusion out of cartridge replacement, making it easy even for first-time aquarium owners.

📅 Replace Every 4 Weeks for Best Results

For optimal filtration performance, Aqueon recommends replacing your filter cartridge approximately every 4 weeks. Over time, activated carbon becomes saturated and loses its ability to absorb impurities — regular replacement ensures your filter continues to work at full capacity, keeping your water clean and your fish thriving. With 15 cartridges in this pack, you have over a year's worth of replacements covered in one purchase.

🐟 Trusted by Aquatic Hobbyists

Aqueon products are developed by true aquatic hobbyists with one mission: "Doing what is best for the health and well-being of fish and aquatic life." From beginner setups to advanced aquariums, Aqueon is a trusted name in the fishkeeping community — known for reliable, high-quality products that make it easy to maintain a healthy aquatic environment.

📐 Specifications

• Pack Size: 15 cartridges
• Size: Medium
• Compatible Filters: Aqueon QuietFlow LED PRO Size 10, Power Filter Size 10, E Internal Power Filter Size 20
• Replacement Frequency: Every 4 weeks (recommended)
• Available Sizes: X-Small, Small, Medium, Large

Stock up and never miss a filter change — your fish will thank you for it.