Oase Replacement Red, Blue and Green filter sponges are now available for Oase Biotec models 5, 5.1, 10, 10.1 and the Biotec 30. The 5/5.1 and 10 models are now obsolete but foams are still available to maintain these older models if needed.
Made exclusively for these large capacity, high functioning pond filters, this collection of filter foams slot easily into the filters to create a multi stage filtration system that fully strains the water from your pond. The mixture of coarse, medium and fine graded filter foams work together to ensure that the water is fully cleansed of grime and waste.
Oase Biotec replacement foams should be changed just 1 or 2 at a time to maintain the bacterial cultures alive in the filter.