Dennerle Nano Filter Extension Filter Accesory

6 in stock now at our store
In-Store price today: $ 15.99

Dennerle's Filter Extension is designed to add extra biological filtering capacity to the Nano Corner Filter (and the XL version too) when fish are added, or if activated charcoal or phosphate remover is going to be used for a short-term basis. This accessory adds a ton of surface area but only increases the filter's thickness by slightly over an in inch!