A sample from the products for the Gasket Kit B include: O-ring,21.5x3.2, Washer,sealing 8m, Washer,sealing,10, O-ring,8.4x2.4.
The Washer,plug Drain 14 is the lowest priced item on this Gasket Kit B schematic.
In this schematic the "Washer Special" is used most often.