This product is the latest aerator device developed by our company. As an important part of the aeration system of a biological aerated filter, it can provide sufficient dissolved oxygen for aerobic microorganisms. The aerator is not restricted by the difference between the temperature in the filter and the air temperature, nor is it affected by the height of the filter and the porosity of the ceramsite filter material. The bubble diameter is small, the distribution range is large, and the aerator has a unique design of the air outlet. Concave-convex structure, it is not easy to be blocked, and it is not afraid of pile pressure of ceramsite filter material. The ventilating branch and branch pipes are made of ABS or UPVC pipes, and the single-hole membrane aerator is made of ABS material, composed of upper and lower pipe clamps, single-hole membranes, and fasteners.