Grundfos 00ID7664 8" Booster Module. CR-H Series Horizontal End Suction Pumps are generally mounted on baseplates. The Pump's end suction design allows the pump to run and function in the horizontal position. The Pumps design allows users to easily service the pump without removing the volute from the pipe system, and without disturbing other interior pump parts. The Grundfos 00ID7664 8" Booster Module is a genuine Grundfos Replacement Baseplate designed for CR-H, CRN-H, CRE-H, CRNE-H Horizontal End Suction Multistage Centrifugal Pumps.