Blue foam replacement for OASE BioTec 60/140 & 18/36 gravity filters. Easy to install, replaces worn sponges to restore filter performance and water clarity.
Replacement fine red sponge / foam suitable for OASE filtoclear, models 3000, 6000, 11000 and 15000 models.
These are just the fine red sponges for the above models, please add how many you need of these and then purchase the number of blue sponges you require
Quality German sponges.
Should last around 5 years..
We stock a wide variety of pond filter sponges at The Fish Works. From generic pre filter sponges and Japanese matting to genuine specialised replacements for specific filters. If you can’t see what you need online please don’t hesitate to give us a call so we can help in sourcing it for you.
We also stock our own generic alternatives to some of the genuine OASE sponges. These function just as well for a fraction of the price, as we believe it is important to ensure the affordability of your pond maintenance.
Pre filter sponges can be attached directly to the intake of your pump via a male fitting. These are helpful in reducing the amount of debris clogging up your pump. They can also be used in smaller systems to aid in filtering out sludge and fish waste.

