Large-scale filter
The facilities of fish cage culture and fish pond
It uses as to avoid the invasion of dangerous creatures in the large scale aquafarm.
Many aquafarms used this filter to get more capacious aquaculture space in the place like baymouth.
On the aspect of bathing beach
And it plays an effective role in avoiding the attack from some dangerous creature like jellyfish, shark and so on.
Facilities of disaster prevention
Prevent the driftwood from spreading.