What you need to keep your aquarium Askoll PURE or Askoll PURE LED M, L or XL always fit. The maintenance kit contains the spare materials required to maintain the filter system: just open the lid and replace the bags or filter sponges with those supplied following the recommended schedule, and the aquatic world is easily maintained
These are all dry operations - like inserting a capsule in the coffee machine - so there is no need to get your hands wet