You are purchasing 1kg (2 x 500g boxes) of premium quality Ceramic Filter Rings.
Our filter rings are an ideal biological filter media for use in Aquarium and Pond Filters.
These filter rings are packaged in mesh filter bags - allowing easy cleaning when inside your filter. Alternatively, these can be taken out of the media bag and placed loose in the filter.
The huge surface area of these filter rings allow beneficial bacteria to colonise, and biologically filter your aquarium water - removing ammonia and nitrite.
Please Note: This will be sent as two boxes of 500g - Meaning there will be 500g in each media bag.