Aquarium Pond Pump Hydroponics Diffuser Fish Tank Bubble Air Stone 8cm/12cm

Features:
A great way to add oxygen and lower CO2 levels to your hydroponic, circulation system, fish tank and aquarium.
Round surface and flat bottom make the stone place steadily.
Low oxygen consumption and high rate.
Made of premium quality non-toxic mineral material.
High dissolved oxygen rate and create even and tiny bubbles rather than a limited number of large ones.
Specifications:
Size: 80*50*5mm 10L/min
120*50*5mm 18L/min