The Shark Fractional Horsepower Grinder Series from Zoeller Company is designed to handle difficult residential and small commercial applications where sewage ejectors struggle. These 115- and 230-volt pumps are integral automatic grinders, and are available in 1/2 (803), 3/4 (805), and 1 hp (807) models, offering performance head up to 55 feet. Each model is made of cast iron and is oil-filled for optimal heat dissipation, with three independent cutting channels to efficiently handle debris. Tri-Slice Cutter Technology provides over 300,000 cuts per minute, handling flushable wipes, sanitary napkins, and disposable and cloth diapers. Fractional horsepower grinders are available in automatic and non-automatic versions. 800/928-7867; www.zoellerpumps.com.