Rezist syringe filters are available in 13 and 30 mm diameter. Filtration media used in these filters are highly resistant to organic solvents and consist of either hydrophobic PTFE or glass microfiber filters.
The Whatman ReZist range of syringe filters has been specifically designed to be resistant to organic solvents. These filters are suitable for filtration of samples containing aggressive organic solvents. ReZist 30 mm filters can also be used as a venting filter for small vessels.