11mm Clear Bonded Pre-Slit Snap Top Autosampler Caps w - Filtrous. Snap closure; Hard PP cap material; PTFE/Silicone starburst septa; 12 x 32mm; 11mm neck width; Preassembled; Quantity of 100 caps per unit Hplc Vials And Caps - Aijiren. 1.5ml 9-425 HPLC vials are the most common used consumables in Open Top Ribbed Screw Cap with 9mm Red PTFE