1. Flat-top cap 50ml Centrifuge tube,conical
a) Biologically inert, high density polyethylene provides a chemically resistant surface

b) Double threaded design to reduce cross-threading, easily opened and closed

c) Flat top facilitates top writing areas for sample identification

2. Plug-seal cap 50ml Centrifuge tube,conical

a) Biologically inert, high density polypropylene provides a chemically resistant

b) Double threaded design to reduce cross-threading, easily opened and closed.

c) Autoclavable