Fluval C4 Activated Carbon improves water clarity in fresh and saltwater aquariums. Designed for the Fluval C4 Power Filter, Fluval C4 Activated Carbon provides superior adsorption qualities that effectively eliminate odours, discolouration and impurities.
Key Features:

For Fluval C4 Power Filter
Improves water clarity in fresh and saltwater aquariums
Provides superior adsorption qualities
Effectively eliminate odours, discolouration and impurities
Contains 3 bags, 140 g (4.9 oz) each
Net Weight: 420 g (14.8 oz)

Other sizes available:

14011 Fluval C2 Activated Carbon, for Fluval C2 Power Filter
14012 Fluval C3 Activated Carbon, for Fluval C3 Power Filter,