25 l biofilter (non-pressurised) filter. Mechanical filtration via set of foam sponges easily rinsed by hand. Typically 35l/min flow rate and good for smaller ponds up to a maximum of 4,000l stocked at hobbyist levels of fish. Bio filters pond capacity is indicative only – if unsure always buy the next biggest version. You can never ‘over do’ biological filtration, and you never want to ‘under do’ it either. Includes bio balls.
25 Litre Gravity Filter
25l biofilter gravity, bio balls & sponges included