46.20.00 Water and Wastewater Preliminary Treatment Equipment
46.23.00 Grit Removal and Handling Equipment
46.23.13 Chain-and-Bucket Grit Removal Equipment 46.23.16 Chain-and-Flight Grit Removal Equipment 46.23.23 Vortex Grit Removal Equipment 46.23.27 Cyclone Degritters 46.23.33 Aerated Grit Removal Equipment 46.23.43 Inline Baffled Grit Removal Equipment 46.23.53 Traveling Bridge Grit Removal Equipment 46.23.63 Grit Classifying and Washing Equipment 46.23.66 Grit Storage Containers