Plastic Tri-pack is composed of two hemispheres which will form into a ball. And each hemisphere consists of a number of half fan-shaped leaves, the upper and lower leaves in a staggered arrangement. Its surface area is larger than other spherical fillers. It can be used in sewage treatment, desulfurization of CO2 in power plant, desulfuration and purified water tower packing. Plastic multi-aspect hollow ball is a new type of high-efficiency tower packing applied in water treatment equipment. The domestic power, chemical industry, papermaking and environmental protection industries have made use if in the equipments of desulfurization carbon and acid, oily-water separating, seawater desalination, purified and waste water treatment. The design concept is advanced and the structure is reasonable. This product has the virtue of light weight, wide free space, small wind resistance, and good surface hydrophilic, big full wet surface area and convenient filling in the equipment and sound usage effect.