AquaPill® 90127APL 2.75" 4.4 oz AquaPill® 2 Clarifier Plus. AquaPill®2 Clarifier Plus restores, polishes and maintains water clarity. Trace metals and very fine, suspended particles may cause water to appear cloudy. AquaPill®2 Clarifier Plus is a flocculant that clears cloudy water by binding tiny particles toge4ther so they can be trapped by the filter. It is gradually released into the filter system where thorough mixing, flocculation and filtration take place. For best results, backwash the filter once the desired clarity has been achieved.