The 90mm Glass Microanalysis Holders are used for filtering liquid samples under vacuum for microbiological or particulate analysis. Holders are available with either a sintered glass base or stainless steel support.
Choose a 90mm holder for filtering larger volumes or samples that are viscous or have a heavy particle bioburden that would tend to clog a 47mm filter. A stainless steel screen should be used when producing ultraclean filtrate or when filtering proteinaceous solutions.
Units are offered with a borosilicate glass funnel, sintered glass base or stainless steel screen and base, anodized aluminum clamp, and silicone stopper No.8