Ease filter workload with the Multi Cyclone and minimize filter cleaning and back-washing. The is the larger 16 multiple hydro cyclones, not the 12 multiple hydro cyclones. For new and existing installations. Multi-Cyclone pre-filters up to 80% of the filter’s incoming dirt load easing the workload of the swimming pool filter. Improves pool water circulation. Enhances the performance of the automatic pool cleaner & in floor cleaning system. Allows for effective pool vacuuming without burdening the pool filter. Minimizes filter maintenance and saving water.