Style: Type 21E inch/imperial series
Dimensions:
Shaft: 1" (25.4 mm)
Seat Bore: 41.3 mm
Seat Thickness: 11.1 mm
Working Length: 25.4 mm (As measured from the rotating face to the back of the spring, under normal compression.)
Materials:
Rubber Parts: Viton (suitable for distillates and high temperature water over 70 degrees celsius)
Faces: Standard Ceramic
Typical Applications: Powamac