ULTRA-WARE® conversion base converts the five valve, four valve and filtration caps to use 90 mm filter membranes, providing up to four times faster filtration.

• Requires a 90 mm solvent pickup adapter

The conversion base is manufactured from glass-filled PTFE and is supplied with a coarse porosity (40 to 60 micron porosity) glass support frit and an upper screw clamp.