BEBIKR Aquarium Filter Pad Biochemical Media Bag With Drawstrings Strong Filtration Fish For Tank Reusable Filter 7.9x3.9 Inch Aquarium Heater Light Thermometers Gravel Sand Decorations

✿Package includes(without retail package): 1pcx Filter Bag ✿Size: Size Length: 20cm(7.87in) Width: 10cm(3.94in) ✿This replacement filter bags for aquarium battery-powered gravel The filter bag can be re-used by washing it under tap water. It should be replaced after it worn out. ✿Nano technology treatment, ultra-fine wool fiber knitwear, no deformation, tear not bad. It can be cleaned by washing machine, high-pressure rinse and directly. After washing, it can be reused. ✿ Exquisite selvage, no shedding, selvage is a must for cutting, and super adsorption culture filtration, good water permeability.Based on the filtration principle of artificial turf, the dirt is trapped in the grass roots for digestion and decomposition, without additives, and the water quality is not affected in a neutral way.