Overflow box for aquariums, inlet overflow box, self-starting acrylic siphon,

The outlet pipe has check valve, can be pumped through the attached, quickly exhaust the inside of the first overflow box, easy to start the overflow box. 【Overflow Comb】: With overflow box guide protection comb, can make the water evenly dispersed, and can prevent fish, aquatic plants and other debris into the overflow box.

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