JBL Aqua jbl procristal i30 superclear filter (x2)

For indoor filter JBL ProCristal i30: ready-to-use cartridge for crystal-clear aquarium water Easy installation: open top cover, insert cartridge into container, replace cover. Hyperactive carbon: special filter material binds and absorbs food residues and metabolic products. Replace filter material tous monthly Included in delivery: special filter material for clear water, SuperClear ProCristal