Fluval204/304Foam

Fluval Foam Filter Block For filter models: 404 405 406 For freshwater and marine environments 2 pcs in a pack Captures large particles and debris for effective mechanical filtration Performs key role in first stage of the filtration process Custom fit to prevent debris bypass Ideal pore size allows efficient water flow with less clogging for long-lasting filtration Enhances biological filtration Fluval Foam captures large particles and debris for effective mechanical filtration which is the crucial first stage in the filtration process. Custom fit to prevent debris bypass the foam has a pore size that allows efficient water flow with less clogging for long-lasting filtration. The foam also enhances biological filtration.