Specifications and technical parameters

Name and specifications	Total length	Sleeve length	Filter cap form	outside diameter	inside diameter	notes
QMZM Ø 25 filter head	405-440mm	100-160mm	Tower type	Ø25mm	20mm	not have

Product Introduction
The special bottom mounted long stem filter head for aerated biological filters consists of a filter rod, a filter cap, and a strong sleeve. The filter rod sleeve is embedded in the concrete filter plate and has internal thread patterns. The thickness of the conventional filter plate is 100mm. The bottom mounted long stem filter head is made of ABS engineering plastic injection molding, with high compressive strength. Collision resistant, firmly connected, and can ensure that the filter head does not fall off after installation. The bottom mounted long handle filter head is equipped with a bidirectional anti blocking filter cover at the lower end to effectively prevent debris from entering the filter rod. Impurities attached to the outside of the bottom filter cap can be removed by lowering the water level, and can be replaced if necessary. There is no dead water zone between the bottom mounted long handle filter head and the filter plate, and it does not block the accumulation of mud.

quality standard
The bottom mounted long handle filter head has no defects such as incomplete gaps, flying edges, or burrs. The surface of the filter head is smooth, without obvious impurities, cracks, or bubbles. The surface color is consistent, and the goods have no curvature, shrinkage, or shortage of materials, which meets the requirements of the enterprise inspection standards.