The inclined tube / plate filler is mainly used for sedimentation and sand removal devices, and is the most widely used and mature water treatment device in water supply and drainage engineering for over a decade. It is widely applicable, has high treatment efficiency, and occupies a small area. It is suitable for water inlet sand removal, general industrial and water supply sedimentation, sewage sedimentation, oil separation, and tailings concentration treatment. It is suitable for both new construction projects and the renovation of existing old pools, and can achieve good results. The material is ethylene propylene copolymer.