Name: Aquarium Fish Tank Air Stone
Size: 4CM, 5CM round gas stone (metal interface)
Material: quartz sand
Color: Blue
Caliber: 4mm trachea
Packing: OPP bag
Peculiarity:
1) Good gas diffusion and good filterability
2) Ozone resistance, corrosion resistance
3) Durable
4) Reusable, repeated washing
5) The bubbles are fine and the gas volume is large