Filter system utilizes stainless steel to extend product lifetime. High pressure-resistant, robust wedge-shaped filter core is applied, so the meshes will not deform easily. When the wastewater flows from the exterior of filter core back to the interior, impurities will adhere to the surfaces of the filter core. The design of a detachable cartridge with huge opening simplifies the removal and the cleaning of the filter core To meet the requirements of every field, this product comes with different lengths for selection. The filtering capability ranged from mesh number higher than 450 (0.025m/m) will be able to perform powerful filtering efficiency that can greatly reduce wastewater prevention cost and be eco-friendly and economic at the same time.