This Filteration Kit allows you to quickly separate suspensions and mixtures using vacuum filtration. Included is a 500ml Borosilicate Filtering Flask, Vacuum Pump, Porcelain Buchner Funnell, 9cm filter paper, connection tubing, and a rubber stopper. The stopper hole is specially cut to hold the Buchner funnel. The Vacuum Pump is simplifies the process of vacuum filtration, eliminating the need for a water source and vacuum aspirator. It is also much more economical than a costly electric vacuum pump. The pumping rate is 15ml per stroke and will displace up to 725ml of air. The pump is fitted with a valve to release vacuum.