Ferrules, for use with Low Pressure, Tubing Connectors. Use with Flange Free, 1/16th", low pressure tubing. PTFE. ARE-Applied Research brand. 10/PK.
Use with "Male Nuts" for low pressure tubing connections in HPLC or other fluidic connections.
PTFE (Polytetrafluroethylene) is a fluorocarbon used as a hydrophobic material. PTFE reduces friction, wear and has one of the lowest coefficients of friction against any solid.