Fluval C4 Poly/Foam Pad - 3 Pack

Replacement two-layer poly/foam inserts for the Fluval C4 power filter, sold three to a pack.

Key features

• Two mechanical stages in a single insert: open foam first, dense polyester second
• Sized for the C4, the largest of the C-series hang-on filters
• Keeps suspended solids out of the chemical and biological stages further along
• Three pads, which is worth having on a filter turning over a larger tank

What's included

Three C4 poly/foam pads.

Fit and alternatives

C-series pads are not interchangeable between sizes. A C2 or C3 pad will not seat correctly in a C4 and water will simply pass around it, so check the model name on the filter body before ordering. The C series also uses a separate plain foam pad for the biological stage, which is a different part from this one. Other hang-on spares are in Replacement Parts, with pickup available at our Lethbridge store.