Blade grinder pumps are available in 3HP-15HP models with 2-in., 2.5-in. and 3-in. discharge sizes. All Blade pumps are equipped with patented Barnes Slicerator technology, which is an innovative, radial-cutting, grinding technology, featuring 440C stainless-steel shredding ring and cutter. At 172,500 cuts per minute, Blade pumps shred solids like rags, ropes, cloth, diapers and napkins.