Specifications include, but are not limited to: This specification shall govern all work necessary for furnishing and delivering six (6) 7.5 hp and two (2) 20 hp aspirating aerators for recycled water. This specification defines an electric motor-driven propeller-type, horizontal, aspirating aerator. The aerator induces the flow of atmospheric air below the surface of the water and provides flow-linkage mixing in multiple unit arrangements. The aspirating aerators will replace existing aspirating aerators currently used for aerating recycled water at three (3) different outfalls in the San Antonio Water System shown on the attachments. Aspirating aerators will be installed by SAWS with oversight by the aerator manufacturer’s representative.