Features: Weight: 110g per package Specialized for low water level turtle pump filter. Doing well in your aquarium filters growing bacteria. Voltage: AC 220-240V 50/60Hz Max Flow Rate: 500L/H Watt: 5W Cable length: 1.1m Flow Rate: 600L/H H-Max: 1.1M Item Material: Plastic Item Size: 8.5cm x 7cm x 21 cm Box Size: 12.5cm x 8cm x 22.2cm Why do you need this aquarium filter media? Improve Water Quickly and Clear Water filter Impurity, decompose harmful ammonia (NH3/4), nitrite (NO2) and nitrate (NO3) in water to establish a healthy water nitration system. Millions of round particles sintered from ceramic clay make it create three-dimensional voids, forming micron-sized pores, and the pore size is equivalent to the general molecular size. Specially shaped filter bricks to decorate your tank.