High Chrome Impeller GGH10137A05 of 3 Vane Closed Type which one of wet-end parts for 12/10G-GH Gravel Sand Pumps. Tobee's G/GH Gravel Pump Impeller is to impart and direct the centrifugal force to the sand gravel slurries. And Impeller expulsion vanes reduce gland pressure and intrusion of high concentrations of solids in the gland area. Efficiency is maintained by minimising suction side recirculation. Compared to slurry pump impeller, gravel pump impeller has larger internal profile that allows bigger particles and handling the most difficult higher abrasive slurries. 12x10G-GH High Head Gravel Pump is the world's standard pump for dredge and gravel with high pressure applications. The 12x10 pump performance range provides excellent wear life while maintaining efficiency during the wear cycle providing the best total operating cost. A wide variety of shaft seals provide a perfect fit for a wide range of applications.