Fluval Foam Pad Replacement Filter Media for C4 Aquarium Power Filter – 2 Pack
Fluval C4 Foam Pad (2-Pack) – Two replacement foam filter pads for the Fluval C4 Power Filter. They serve as the first stage of filtration, catching large debris and particles to prevent clogging of finer media. Made of durable, porous foam, these pads are custom-fit for the C4 filter, helping maintain strong water flow and improving water clarity by removing waste from the water column.
Product Specifications
| Item | Details |
|---|---|
| Product Type | Replacement Foam Filter Pad |
| Filter Model | Fluval C4 Power Filter |
| Quantity | 2 Pads |
| Material | Porous Foam |
| Function | First-stage filtration, debris removal |
FAQ
How do I install the foam pads in my Fluval C4 filter?
Insert the foam pads into the designated slot in the C4 filter housing. Ensure they are properly aligned and secured to maintain optimal water flow and filtration performance.
How often should I replace the foam pads?
Replace the foam pads every 3 to 6 months, depending on tank size, fish population, and water conditions. Check for signs of wear or clogging to determine replacement timing.
Are these pads compatible with other Fluval filter models?
Please contact customer service for compatibility information with other Fluval filter models.

Peter Oliver –
The foam pads fit perfectly in my C4 filter. After installing them, I noticed less debris in the water and better water flow. Easy to replace and have not had any issues after two months of use.
Stephanie Randall –
Works well as the first stage of filtration. Keeps large particles out and prevents clogging of the finer filter media. Slightly harder to remove than the original pads, but still manageable.
Molly Oliver –
Great replacement for worn-out pads. Improved water clarity in my 20-gallon tank. The foam is durable and maintains strong water flow even after several weeks of use.