1.Larger surface with high treatment function.
2.PVC material used, great mechanical strength, can be installed with great safety.
not easy to get broken or damaged, long consuming life.
3.Wide space between filters, not easy to get blocked.
4.Great water circulation rate.
5.High function rate of catching plankton.
6.The contact surface is designed with the functions for organisms to get cohered and to get flaked off.
7.Easy to be installed, low price with good quality.
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