Millipore All-Glass Filter Holders - Kit90 mm, Stainless steel screen membrane support, 1L FunnelThe Millipore All-Glass Filter Holder was designed for the filtration of aqueous and organic or corrosive liquids for particulate contamination analysis. The holder can also be used for HPLC solvent preparation. The vacuum connection is integrated into the filter holder base and flask cap, above the filtrate exit level. With this design, you can avoid unintentionally drawing filtrate into vacuum tubing. This design also allows simple transfer of filtrate (i.e., HPLC solvents) by pouring from the receiver flask. This item is a Kit composed of the following items:(Catalog Number - Description)XX1019000 - Millipore Glass funnel, 1L, 90 mm, Borosilicate, Ground glass sealXX1019003 - Millipore Spring Clamp, 90 mm, AluminumXX1019004 - Millipore Glass Base and Cap, 90 mm, For use with stainless steel screen support, Screen sold separatelyXX1009002 - Millipore Stainless Steel Support Screen, 90 mmXX1009010 - Millipore PTFE Gaskets, 90 mm, 10/PKFeatures & Benefits:. All-Glass construction has broad chemical compatibility. Borosilicate glass parts contact liquid, with ground-glass sealing surfaces. Vacuum connection to flask cap simplifies transfer of filtrateApplications:Particle Contamination Analysis, HPLC Solvent Filtration, General Filtration and Clarification