Gorman-Rupp announced the expansion of its Prime Aire products to include the new PAV3B60C-3TNV70 pump. The heart of this 3-in. model uses a patent-pending vortex impeller with the company’s Staggerwing (staggered-winglet) design, which allows this model to pass a 3-in. solid through all critical areas of the pump. Most engine-driven pumps of this size cannot pass a 3-in. spherical solid.