use:a. oxygen supply for fish whilst field fishing

b. fresh live bait during field fishing

c. oxygen supply for fry/shrimp and fish during transportation for higher
survival rate

d. oxygen supply for fish at home or aquarium, especially when blackout

e. others

feature:a. simple but smooth outline, easy-operation design

b. imported high-strength, pure pp plastic apply to shell, injection molding

c. ultra-thin, compact size, portable and easy to use

d. low-noise and high-displacement

e. stainless steel screws, buckles, and spring resistance to salt and fog test

technical specification: