Welcome to our M D Laboratory Supplies Inc

Part Number Name Description Case Qty Case Price, USD Quantity Add to Cart
21175-2 Glass Stopcock with Neoprene Bushing Glass Stopcock Valve and Plug with Neoprene Bushing 1 $34.69
21175-10 Neoprene Bushing 10 black neoprene bushings 10 $21.97

The shape of the body allows easy removal of desiccant materials

·         Simplified stopcock design minimizes chipping or marring of critically ground finishes during cleaning and assembly

·         Valve is secured to the desiccator lid by a neoprene grommet located in the knob of the cover

·         With this style, an accidental bump would be more readily absorbed than with styles having sealed assemblies

·         Stem is tooled with a hose connection to accept 5/16” ID flexible tubing

·         When properly greased, it should hold a vacuum of 29 inches of mercury for twenty-four hours

·         All glass apparatus manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements