Hplc Vial Caps found in: LC Certified Vial Kits, Screw cap (open-top), Target DP 9mm Vial Closures, Crimp Neck Vial Kits, N 11, 6 mL Crimp Top Vials, Caps.. thread vials Pre-assembled septa allows for vacuum release where more than half of vial contents will be removed Integral septum caps are an economical choice for HPLC applications Bonded septa caps resist dislodging during injection