The filter-holder made of PTFE for the ultra cleaning of little volumes (more than 10 ml aprox.). The PTFE is an inert material that does not give retails of elements, and for that reason is very adequate on the elimination of particles in little samples of aggressive
products.
This filter-holder does not have a dryer ring , for this reason the torsion of the superior membrane is avoided, this membrane is avoided when the base in strengthen. 

Connectors
Inlet Female Luer lock
Outlet Male luer slip
Flow rate with water (ml/min /cm2 )p= 1 bar | 100 Kpa aprox.:
0.22 µm membrane 10 ml/min aprox.
0.45 µm membrane 18 ml/min aprox.
Chemical compatibility: Same as PTFE
Materials: PTFE
Diameter: 13 mm
Filtration area: 0.5 cm2 Weight: 13 g
Maximum pressure: 5 bar (500 kPa, 72.5 psi)
Membrane filter measure: 13 mm diameter
Hold-up volume
< 0.03 ml after reaching bubble point, 0.3 ml before
Sterilization: Autoclaving (max. 134ºC) or dry heat (max. 180ºC)