Mechanical Seal, Compatible with Pump Type Booster Pump, Compatible with Brand Dayton, Compatible with Grainger Part Number 45MW11, 45MW12, 45MW13, 45MW14, 45MW15, 45MW16, 45MW17, 45MW18, 45MW19, 45MW20, 45MW21, 45MW22, 45MW23, 45MW24, 45MW25, 45MW26, 45MW27, 45MW28, 45MW29, 45MW30, 45MW31, Compatible with Manufacturer Model Number 45MW11, 45MW12, 45MW13, 45MW14, 45MW15, 45MW16, 45MW17, 45MW18, 45MW19, 45MW20, 45MW21, 45MW22, 45MW23, 45MW24, 45MW25, 45MW26, 45MW27, 45MW28, 45MW29, 45MW30, 45MW31 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov -