Polyurethane sponge media for biological treatment and filtration — hydrophilic white and black types in 2cm/3cm cubes, with a controlled PPI pore structure that supports fast biofilm formation and high biomass.
The open porous sponge structure gives a large surface for biomass with easy water flow, so biological treatment starts fast and stays active.
White hydrophilic and black polyurethane sponge for different service needs.
PPI 10–60 gives a tunable pore structure for large surface area and fast biofilm formation.
Light sponge media (13/22 kg/m³) are easy to place and regenerate, reducing operating cost.
| Material | Polyurethane sponge |
| Types | White (hydrophilic) / Black |
| Cube size | 2 cm × 2 cm × 2 cm / 3 cm × 3 cm × 3 cm |
| PPI (pores per inch) | Black 60 / 40 / 35 / 30 / 28 · White 25 / 20 / 18 / 15 / 10 |
| Packing density | White ~13 kg/m³ · Black ~22 kg/m³ |
| Structure | Open, interconnected porous foam |
| Application | Biofilm carrier, MBBR, filtration, aquaculture |
| MOQ / price | On request — confirm type, size & destination |
Send your water quality, treatment scale and target standard — we'll confirm the right type, cube size, PPI, quantity and export packing.
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