Oase Biopess 6000/10000 replacement sponges

Genuine Oase Replacement Foams  2 Blue and 2 Black  High Quality Materials Suitable for BioPress Set 6000 and  BioPress Set 10000,  Easy to replace Enormous resilience with high dimensional stability Constant and regular water flow thanks to a firmly defined pore size 100% compatibility for animals, plants and micro organisms