ISO9000 certified manufacturing:highest standards, certified clean room conditions. All the syringe filters are certified by HPLC Extractable Test. Highly asymmetric PES membrane: high flow rate and throughput.12pcs/pack 500ml Sterile Disposable Vacuum Filter. The item "12pc 500ml 0.22um Lab Vacuum Filter System PES Receiver Bottle &Funnel High Flow" is in sale since Tuesday, June 5, 2018. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical, Lab & Dental Supplies\Glassware & Plasticware\Other Medical & Lab Glassware". The seller is "albertsfilterstore" and is located in Bellevue, Washington. This item can be shipped worldwide.