The special anti-clogging long-handle filter nozzle for biological aerated filters consists of a filter stem, a water filter cap, and a strong sleeve. The filter stem sleeve is pre-embedded in the concrete filter plate and features internal threads, with a standard filter plate thickness of 100mm. The long-handle filter nozzle is injection-molded from ABS engineering plastic, offering high pressure strength, resistance to breakage from impact or stepping, and a firm connection that ensures the nozzle does not fall off after installation. The long-handle filter nozzle is designed with two-way anti-clogging protection, featuring a filter cover at the lower end to effectively prevent debris from entering the filter stem. Impurities attached to the outside of the lower filter cap can be removed by lowering the water level; if necessary, the long-handle filter nozzle can be replaced. There is no stagnant water zone between the filter nozzle and the filter plate, preventing clogging and sludge accumulation.

The gaps of the filter nozzles have no defects such as nicks, burrs and flashings. The surface of the filter nozzles is smooth, with no obvious impurities, no cracks, no bubbles, consistent surface color, no deflection, no shrinkage and no underfilling. It meets the requirements of the enterprise's inspection standards.