Oxygen diffuser

Oxygen diffuser for increasing the oxygen content in the water.
Soak the stone bar completely in water one hour before use.
Clean regularly by a brush as they get clogged after months of usage.
Suitable for fish and aquariums.

Specifications:
Size:
Small 10 * 4cm and 3.9″ * 1.5″
Medium 20 * 4cm and 7.8″ * 1.5″
Large 30 * 4cm and 11.8″ * 1.5″

Notes:
The real product colors may be slightly different from what you see in the images.
The product dimensions may be slightly different from what is written in the product specifications.