General description 2X Aquarium Fish Tank Fluidized Moving Bed Filter Media Bubbles are designed to enhance the filtration process in your aquarium. Featuring a built-in V-1 biochemical filter material, these filters promote powerful bacterial culture while effectively removing impurities. Technical specifications Model: LH-600 Size: 79 x 224 mm Material: Plastic Color: Green + Black Measurement allowed error: +/- 1-3 cm Usage Biochemical Filtration: The V-1 filter material supports the growth of beneficial bacteria. Physical Filtration: A filter sponge at the bottom captures larger dirt particles. Bubble Stone: Provides high-efficiency oxygen supply quietly and delicately. Other information Package Contents: 2 x Filter Note: Light shooting and different displays may cause the color of the item in the picture to differ slightly from the actual product.