sera Filter Wool
sera filter wool for mechanical prefiltration consists of stable fibers that retain finer dirt particles for a longer time without sticking or collapsing. sera filter wool can be washed out several times. Suitable for all filters.
We recommended sera siporax Professional for the biological filtration. sera siporax Professional is open-pored and three-dimensional - for lasting pollutant breakdown.
sera filter media must be rinsed under warm water before using it for the first time.
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