Replacement foam red Oase BioSmart 5000-16000

Oase sponge for Biosmart Filters  Colour:  Red Replacement Foam, BioSmart 5000-16000, Red Dimensions 18 x 19.5 x 8 cm

For Biosmart 5000 one red and one blue sponge required

For Biosmart 7000/8000 one red and two blue sponge required

For Biosmart 14000/16000 three red and three blue sponge required