The Zoeller Impeller is a machined vortex design with a diameter of 5.125 inches, specifically engineered for the 61HD pump model. This impeller enhances the pump's efficiency by optimizing fluid flow and reducing clogging, making it ideal for handling solids and debris. Constructed from high-quality materials, it ensures durability and reliable performance in various applications. The precision engineering of this impeller contributes to the overall effectiveness of the pump, making it a critical component for maintaining optimal operation.