Replacement drop in Waterbox 20/25 filter cup. Ditch your annoying filter socks and swap for our filter floss cup holders, simply fill with your desired filter floss and drop in to your existing filter sock holders.
Made from aquarium safe PETG filament.
*Note that although a large amount of products are kept in stock - potential lead times of 4 weeks may occur in peak time as most products are printed on demand.
