Our PEEK Mini Microfilter Capsule encapsulated filters boasts internal volumes as low as 85nL with the micro-screen and 10nL with the frit disc option. It is specifically designed for use with the M-530 and M-531 Mini MicroFilter Assemblies. It is used with a stainless steel screen Frit. It has a porosity of 1µm and comes in green. It is available as a 2 pack.