Shaft Seal, For Shaft Diameter 1 1/4 in, Compatible with Pump Type Constant Pressure Booster Pumps, Straight Centrifugal, Compatible with Series Not Applicable, Compatible with Series Family Pac-Seal, Gasket Material , Compatible with Media Type Cooking Oil, Includes Cup Mounted, Replaces Grainger Seal Not Applicable, Ring Material Carbon, Seal Type Designation 21, Shaft Seal Type Mechanical Shaft Seal, Shut Off Pressure (Maximum) 250 psi, Spring Material 18-8, Spring Type Single Spring