It’s made of high-strength ABS material with flexible operation, simple valve handle, has six-way functions;
Filter: Normal filters and cleans the water.
Backwash: Discharge the filter hidden dirt plot.
Ring: Exclude dirt in the sewage pipe.
Recirculate: Does not pass through the filter, water recycling.
Waste: Does not pass through the filter, the direct discharge.
Close: The function in the filter to close.