Description : A modular porous net-tube made from high-density polyethylene (HDPE) designed for biological wastewater treatment. Its open mesh structure promotes efficient gas–liquid contact, boosts dissolved oxygen, and supports stable biofilm activity. The design ensures self-cleaning and non-clogging performance, making it ideal for long-term, low-maintenance use⚪【Application】:-● Municipal wastewater & stormwater treatment. ● Industrial wastewater treatment. ● Aquaculture & RAS (Recirculating Aquaculture Systems). ● Water polishing and aeration units. ●Retrofit or expansion of trickling filters & towers.⚪【Specification】:-●Material:| Virgin HDPE; UV-resistant; chemically & biologically inert ●Mesh Sizes :35 mm, 50 mm, 60 mm, 100 mm● Dimensions Standard module: 54×54×54 cm (custom sizes available)