Fluval U3 Poly/Carbon Filter Cartridge – Replacement For Hagen Fluval U3 Internal Filter

This is a brand-new Fluval U3 Poly/Carbon filter cartridge from Rolf Hagen.

It's the exact replacement you need for the Fluval U3 internal power filter.

The cartridge combines mechanical filtration (poly) with chemical filtration (carbon) to keep your aquarium water crystal clear and odor-free.

Just swap out the old one and you're good to go.

Simple maintenance for a healthy tank.