Stopcock parts and components give stopcocks a wider range of uses. Stopcock plug assemblies are also produced to replace parts in existing lab equipment. Plastic replacement stopcock parts and components, when paired with a stopcock, are often used in conjunction with separatory funnels, Schlenk flasks and burettes.
Placed in the test sieve's recess to provide maximum stability and optimum sealing when used in sieve stacks. These o-rings for test sieves are available in several sizes, based upon the test sieve's diameter.