The DUALL® is an extremely efficient grinder which combines both conical and cylindrical surfaces on a single pestle and tube. These separate areas perform the dual functions of initial grinding in the conical section and final homogenization in the cylindrical section.

• Pestle is made of solid PTFE and threaded to a stainless steel shaft
• PTFE-lined phenolic screw cap closure permits centrifugation or storage of homogenates without transfer
• Replacement components are available and completely interchangeable
• Clearance between pestles and tubes is 0.004 to 0.006"

Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.