This Gasket Kit,b (nas) is the most expensive of the items that make up this Gasket Kit B assembly.
The most reasonably priced component used on the Cn250 Helix 1998 (w) Usa Gasket Kit B is the Washer,plug,drain 12.
This GASKET KIT B assembly utilises two O-ring,13.8x2.5(s) - the highest specified component.