Impeller Cartridge, Compatible with Pump Type Booster Pump, Compatible with Pump Series PB series, Compatible with Brand Flint & Walling, Compatible with Grainger Part Number 22W713, 22W714, 4YC07, 4YC08, Compatible with Manufacturer Model Number PB0516A071, PB0516A073, Number of Stages 16, Includes (2) O-Ring, Coupling, Discharge Bearing, Shaft, Stage Components