Fluval Nitrite Remover Pads for FX4 / FX5 / FX6 (3pcs). Fluval Resin-Infused Nitrite Remover Pads. Fluval Nitrite Remover Pads for 107 / 207 (3pcs). Fluval Nitrite Remover Pads for 307 / 407 (6pcs). Suitable for the Fluval ‘07 range of external filters, these pads are composed of a complex, interwoven infused resin with embedded nitrite removers, which effectively trap floating waste & debris for a clean and clear aquarium.
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