Description
Glass Filter Holders. These filter holders are available with a 30 ml funnel (filter dia. 25 mm) for small-volume filtration. They can be sterilized by autoclaving (max. 134 DEG C) or by dry heat (max. 180 DEG C). The glass frit ensures uniform distribution of retained particles.
Glass vacuum filter holders are available in two types which differ only in the filter support, which is a PTFE ring. This ring contains either a glass frit or a PTFE-coated stainless steel screen and an underdrain screen. The filter supports may only be changed as a unit. Because of the particularly even distribution of particulates of the membrane filter surface, filter supports with glass frits are preferred for use in particulate analysis. Filter supports with a PTFE-coated screen are mainly used for clarifying or sterile filtration of liter volumes.
Includes; 1 Glass Funnel, 1 Clamp, 1 Filter Support with glass frit or PTFE-coated support screen and PTFE underdrain screen, 1 Silicone O-ring and 1 Glass base
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