The Interpet PF filter has been designed to give highly effective low maintenance filtration. This helps provide ideal conditions for your aquarium fish, plants and coral to thrive. The PF filter is the most advanced and comprehensive aquarium filter available today. In addition to providing excellent filtration the dual mechanical and chemical filter foams remove the toxins, discolouration, odour, metals and pesticides. The filter body can simply be turned off and removed for cleaning to stop waste dropping into the aquarium. For aquariums up to approx 35cm/5-40 litres.