Bell & Gossett’s Suction Diffuser Plus is a flow-straightening centrifugal pump accessory that helps maintain efficiency, improve flow conditions and eliminate recirculation zones. The Suction Diffuser Plus provides ideal flow conditions to maintain better efficiencies in commercial applications, the company states. Other elements include the Flow Cone technology that enables the pump to retain as much as 5% more of its intrinsic efficiency, plus a mesh throwaway startup strainer for clean and easy performance at installation. Bell & Gossett.