Replacement UltraZap combi filter media for CB0 to CB4 combi gravity filters — yellow foam sets and white gauze, each cut to the correct size for that model. Order just the foam set or just the gauze when it is time for a media refresh.

Fresh foam and gauze keep the mechanical stages trapping solids before they reach the biological media — the first line of defence in pond, aquarium and fish tank filtration.

Good to know:
– Foam sets: CB0 340×270mm, CB1 580×350mm, CB2 680×370mm, CB3 660×660mm, CB4 1000×680mm
– White gauze available for every model, CB0 through CB4
– Select your filter model and item from the options
– Cut to fit UltraZap combi gravity filter boxes