Mar 22, 2014 · hs vials 75 x 22.5mm crimp top septa 3.0 mm thick glass USA PTFE septa cap for wholesales-Aijiren HPLC Vials al crimp 20ml beveled edge aluminum crimp Get Price 22-03-14 CHROMATOGRAPHY - Th. Geyer Crimp neck vials and micro-vials ND8 are available in clear and amber first and have lower particle formation than septa made of natural rubber.